RMGN Rmg Networks Holding Corp. (delisted)

This Schedule 13G (this “ Schedule 13G ”) relates to shares of Common Stock, $0.0001 par value per share (the “ Common Stock ”), of SCG Financial Acquisition Corp., a Delaware corporation, and is being filed on behalf of (i) PAR Investment Partners, L.P. (“ PAR Investment Partners ”), a Delaware limited partnership, (ii) PAR Group, L.P. (“ PAR Group ”), a Delaware limited partnership and (iii) PAR Capital Management, Inc. (“ PAR Capital Management ”), a Delaware corporation. The sole general partner of PAR Investment Partners is PAR Group. The sole general partner of PAR Group is PAR Capital Management. The persons mentioned in (i) (ii) and (iii) above are referred to herein as the “Reporting Persons”. All shares of Common Stock reported in this Schedule 13G are held by PAR Investment Partners.

Item 1(a). Name of Issuer:

SCG Financial Acquisition Corp.

Item 1(b). Address of Issuer’s Principal Executive Offices:

615 N. Wabash Ave., Chicago, Illinois 60611

Item 2(a). Name of Person Filing:

(i) PAR Investment Partners, L.P., (ii) PAR Group, L.P. and (iii) PAR Capital Management, Inc.

Item 2(b). Address of Principal Business Office or, if None, Residence:

The address of the principal business office of the Reporting Persons:

One International Place, Suite 2401

Boston, Massachusetts 02110

Item 2(c). Citizenship:

United States

Item 2(d). Title of Class of Securities:

Common Stock, par value $0.0001 per share

Item 2(e). CUSIP Number:

78404K103

Item 3. Not Applicable.

Item 4. Ownership.

PAR Investment Partners, PAR Group and PAR Capital Management may be each deemed to own the following:

Item 5. Ownership of Five Percent or Less of a Class.

Not applicable.

Item 6. Ownership of More than Five Percent on Behalf of Another Person.

Not applicable.

Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person.

Not applicable.

Item 8. Identification and Classification of Members of the Group.

See Exhibit 1.

Item 9. Notice of Dissolution of Group.

Not applicable.

Item 10. Certifications .

Not applicable.

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.

Date: April 12, 2013

Exhibit 1

Joint Filing Agreement

In accordance with Rule 13d-1(k) under the Securities and Exchange Act of 1934, the persons or entities named below agree to the joint filing on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the shares of the Issuer and further agree that this joint filing agreement be included as an exhibit to this Schedule 13G. In evidence thereof, the undersigned, being duly authorized, have executed this Joint Filing Agreement as of April 12, 2013.