UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934
(Amendment No.2 )*

China Digital TV Holding Co., Ltd.

(Name of Issuer)

Ordinary shares, par value $0.0005 per share

(Title of Class of Securities)

16938G 107

(CUSIP Number)

(Name, Address and Telephone Number of Person
Authorized to Receive Notices and Communications)

January 5, 2018

(Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. ¨

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See §240.13d-7 for other parties to whom copies are to be sent.

^* The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

This Amendment No. 2 to Schedule 13D (this “ Amendment No. 1 ”) hereby amends and supplements the statement on Schedule 13D filed with the U.S. Securities and Exchange Commission on May 4, 2017 (the “ Amendment No. 1 ”) relates to the Ordinary Shares of China Digital TV Holding Co., Ltd., an exempted limited liability company organized under the laws of the Cayman Islands (the “Issuer”). The principal executive office of the Issuer is Jingmeng High-Tech Building B, 4^th Floor, No. 5 Shangdi East Road, Haidian District, Beijing, China.

This Statement is filed jointly by Smart Live and Mr. Zhu. The reporting persons are making this single, joint filing pursuant to the Joint Filing Agreement attached as Exhibit 99.1, although neither the fact of this filing nor anything contained herein shall be deemed to be an admission by the reporting persons that a group exists.

The principal business of Smart Live is to hold the Ordinary Shares in the Issuer. The principal business of Firstvision Limited is to hold securities in Smart Live. The principal business of Credit Suisse Trust Limited is to act as the trustee for the The Scott Zhu Trust for the benefits of certain family members of Mr. Zhu.

The principal business address and the principal office address of Smart Live is Vistra Corporate Services Centre, Wickhams CayII, Road Town, Tortola, VG1110, British Virgin Islands. The principal business address and the principal office address of Firstvision Limited is The Bahamas Financial Centre, Shirley and Charlotte Streets, P.O. Box N-3023, Nassau, Bahamas. The principal business address and the principal office address of Credit Suisse Trust Limited is 1 Raffles Link #05-02 Singapore 039393. The principal business address of Mr. Zhu is Jingmeng High-Tech Building B, 4^th Floor, No. 5 Shangdi East Road, Haidian District, Beijing, China.

During the last five years, none of the reporting persons has been convicted in a criminal proceeding.

During the last five years, none of the reporting persons has been a party to a civil proceeding or a judicial or administrative body of competent jurisdiction and as result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.

The present principal occupation of Mr. Zhu is the chief executive officer and director of the Issuer. Mr. Zhu is a citizen of the People’s Republic of China.

On January 5, 2018, Smart Live and Polar Light entered into a Share Purchase Agreement (the “SPA”). Pursuant to the SPA, Smart Live agreed to purchase an aggregate of 10,423,393 Ordinary Shares for an aggregate consideration of US$5,732,866.15 in cash, representing a per Ordinary Share price of US$0.55.

Smart Live will use available cash to purchase the above referenced shares, and no borrowed funds will be used in connection with such purchase.

The SPA is filed as Exhibit 99.2 hereto. Reference is made to such Exhibit for the complete terms of the SPA.

The reporting persons agreed to purchase the Ordinary Shares of the Issuer referenced in Item 3 above from Polar Light because the reporting persons believe that the ADRs represented and continues to represent an attractive investment.

Except as set forth in this Schedule 13D, the reporting persons do not presently have any additional plans or proposals that relate to or would result in any of the transactions, events or actions described in subparagraphs (a) through (j) of Item 4 of Schedule 13D.

(a) As of the date hereof, Smart Live beneficially owns, in the aggregate, 22,634,270 Ordinary Shares, consisting of (i) 20,846,786 Ordinary Shares, (ii) 1,709,775 ADRs, and (iii) 155,418 Ordinary Shares of the Issuer held by China Cast, of which each of Smart Live and Polar Light owns 50% of the equity interest. The beneficially owned Ordinary Shares represent, in the aggregate, approximately 35.64% of the total number of outstanding Ordinary Shares of the Issuer. The percentage reported in this Schedule 13D is based upon the 63,508,656 Ordinary Shares of the Issuer that were issued and outstanding as of September 30, 2017 (as disclosed in the Issuer’s current report on Form 6-K filed with the Securities and Exchange Commission on November 14, 2017).

(b)

(c) See Item 3 above.

(d) Not applicable.

(e) Not applicable.

The Share Purchase Agreement

The SPA provides that Polar Light sells to Smart Live an aggregate amount of 10,423,393 Ordinary Shares of the Issuer for an aggregate consideration of US$5,732,866.15 in cash, representing a per Ordinary Share price of US$0.55.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Exhibit Index

Exhibit 99.1

Joint Filing Agreement

In accordance with Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned hereby confirm the agreement by and among them to the joint filing on behalf of them of a Statement on Schedule 13D (including any and all amendments thereto) with respect to the Ordinary Shares, par value $0.0005 per share, of China Digital TV Holding Co., Ltd., a company organized under the laws of the Cayman Islands, and that this agreement may be included as an exhibit to such joint filing.

IN WITNESS WHEREOF, the undersigned hereby execute this Agreement as of January 5, 2018.

Exhibit 99.2

SHARE PURCHASE AGREEMENT

THIS SHARE PURCHASE AGREEMENT (this “Agreement”), dated as of Jan 5, 2018, is entered into by and between Polar Light Group Limited, a company organized under the laws of the British Virgin Islands, with principal business office at P.O. Box 957, Offshore Incorporations Centre, Road Town, Tortola, British Virgin Islands(the “Seller”), and Smart Live Group Limited, a company organized under the laws of the British Virgin Islands, with principal business office at P.O. Box 957, Offshore Incorporations Centre, Road Town, Tortola, British Virgin Islands (the “Purchaser”).

WITNESSETH:

WHEREAS, the Seller wishes to sell to the Purchaser, and the Purchasers wishes to purchase from the Seller, an aggregate amount of 10,423,393 Ordinary Shares of China Digital TV Holding Co., Ltd. (the "Company"), par value $0.0005 per ordinary share.

NOW, THEREFORE, based on the parties’ representations and in consideration of the mutual covenants herein contained and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows:

As used in this Agreement, the following term shall have the following meaning:

Subject to the terms and conditions set forth in this Agreement, and in reliance on the representations, warranties and covenants of the Purchaser and the Seller contained herein, upon the execution of this Agreement, the Seller shall sell to the Purchaser and the Purchaser shall purchase from the Seller the Purchased Ordinary Shares, free and clear of any and all Liens (the “Transaction”).

The respective obligations of the Seller and Purchaser to take the actions described in Section 4.2 are subject to the receipt or delivery, as applicable, of their respective deliverables pursuant to Section ‎4.2 above.

The Seller represents and warrants to Purchaser that the Seller has good and valid title to, and is the sole lawful owner of, all of the Purchased Ordinary Shares, and shall convey to Purchaser the full legal and beneficial interest and title in the Purchased Ordinary Shares, free and clear of any Liens, other than as set forth in the Company’s Articles of Association or applicable law (if any).

Each of the parties (and third party beneficiaries) to this Agreement will be entitled to enforce its rights under this breach of any provision of this Agreement and to exercise all other rights existing in its favor. The parties hereto agree that their rights hereunder are special and unique and that any violation thereof would not be adequately compensated by money damages, and each grants the other the right to specifically enforce (including injunctive relief where appropriate) the terms of this Agreement in accordance with this Agreement and subject to applicable law. In the event that any party to this Agreement pursues any lawsuit, claim or proceeding against a defaulting party to enforce or protect its rights and interests under this Agreement and such party prevails in such proceeding, then the defaulting party will, subject to applicable law, promptly pay and reimburse the prevailing party for all of the legal fees, expenses and other costs incurred by the prevailing party in connection with enforcing or protecting its rights and interests hereunder.

[Signature Page Follows]

IN WITNESS WHEREOF, the parties hereto have executed this Ordinary Share Purchase Agreement as of the date first written above.

	SELLER:
	By:
		Name:
		Title:
	PURCHASER:
	By:
		Name:
		Title:

SCHEDULE ‎4.2.1

SHARE TRANSFER DEED

The undersigned, Polar Light Group Limited . (hereinafter, the “Transferor”), for good consideration paid to the Transferor by Smart Live Group Limited (hereinafter, the “Transferee”), does hereby transfer to the said Transferee 10,423,393 Ordinaty Shares (the “SHARES”) of China Digital TV Holding Co., Ltd., par value $0.0005 per ordinary share, to hold unto the said Transferee, its executors, administrators and assigns, subject to the several conditions under which the Transferor held the same at the time of the execution hereof; and the Transferee does hereby agree to take the said Ordinaty Shares subject to the conditions aforesaid.

In witness whereof, the parties have executed this SHARE TRANSFER deed on this _____ day of _________, 2017.

	TRANSFEROR
	By:	Jan 5, 2018
		Name:
		Title:
	TRANSFEREE:
	By:
		Name:
		Title: