**Exhibit 10.77**

**ACKNOWLEDGMENT AGREEMENT**

This AcknowledgmentAgreement, dated as of December 7, 2009 (this “Agreement”), is entered into by the Sponsor Shareholders (as defined below) of Intelsat Global, Ltd., a Bermuda exempted company (the “Company”). 

WHEREAS, pursuant to Section 15(j) of the Management Shareholders Agreement of the Company (as amended from time to time, the“MSA”), the MSA may be amended by a resolution of the Company’s Board of Directors (the “Board”); provided that any such amendment is approved by the BC Investors (as defined in the MSA) and Silver Lake(as defined in the MSA) (the “Sponsor Shareholders”); 

WHEREAS, on December 7, 2009, by a resolution ofthe Board, the Board adopted certain amendments to the MSA, effective as of December 15, 2009, in substantially the form attached hereto as Exhibit A (the “MSA Amendment”); and 

WHEREAS, the Sponsor Shareholders desire to approve the MSA Amendment as adopted by the Board. 

NOW, THEREFORE, in consideration of the foregoing, the Sponsor Shareholders hereby approve the MSA Amendment. 

This Agreement may be executed in counterparts, each of which when so executed shall be deemed an original and all of which taken togethershall constitute one and the same instrument. 

[signature pages follow] 

IN WITNESS WHEREOF, the Sponsor Shareholders have caused this Agreement to be duly executedas of the date first written above. 

 

For and on behalf of the Limited Partnerships comprising

**BC European Capital VIII – 1 to 12 and 14 to 34:**

** **
Matthew ElstonDirector, CIE Management II Limited acting as General Partner of the Limited Partnerships comprising BC European Capital VIII – 1 to 12 and 14 to 34
 
Laurence McNairnDirector, CIE Management II Limited acting as General Partner of the Limited Partnerships comprising BC European Capital VIII – 1 to 12 and 14 to 34For and on behalf of **BC European Capital 35 SC:**
 

Matthew Elston

Director, LMBOEurope SAS
As Gérant to BC European Capital 35 SC
 

***[Signature Page to Acknowledgment Agreement]***

For and on behalf of**BC European Capital 36 SC:**
 

Matthew Elston

Director, LMBOEurope SAS
As Gérant to BC European Capital 36 SCFor and on behalf of **BC European Capital 37 SC:**
 

Matthew Elston

Director, LMBOEurope SAS
As Gérant to BC European Capital 37 SCFor and on behalf of **BC European Capital-Intelsat Syndication L.P.**:
 

Matthew Elston

Director, CIEManagement II Limited acting as General Partner of BC European Capital – Intelsat Syndication L.P.

 
Laurence McNairnDirector, CIE Management II Limited acting as General Partner of BC European Capital – Intelsat Syndication L.P.
 

***[Signature Page to Acknowledgment Agreement]***

For and on behalf of **BC European Capital 38 SC:**
 

Matthew Elston

Director, LMBOEurope SAS
As Gérant to BC European Capital 38 SCFor and on behalf of **BC European Capital 39 SC:**
 

Matthew Elston

Director, LMBOEurope SAS
As Gérant to BC European Capital 39 SCFor and on behalf of **BC European Capital – Intelsat Co-Investment**:
 

Matthew Elston

Director, CIEManagement II Limited acting as General Partner of BC European Capital – Intelsat Co-Investment

 
Laurence McNairnDirector, CIE Management II Limited acting as General Partner of BC European Capital – Intelsat Co-Investment
 

***[Signature Page to Acknowledgment Agreement]***

For and on behalf of **BC European Capital – Intelsat Co-Investment 1:**
 

Matthew Elston

Director, CIEManagement II Limited acting as General Partner of BC European Capital – Intelsat Co-Investment 1

 
Laurence McNairnDirector, CIE Management II Limited acting as General Partner of BC European Capital – Intelsat Co-Investment 1
 

***[Signature Page to Acknowledgment Agreement]***

**SILVER LAKE PARTNERS III, L.P.**By: Silver Lake Technology Associates III, L.P., its general partnerBy: SLTA III (GP), L.L.C., its general partner its general partnerBy: Silver Lake Group, L.L.C., its managing memberBy: 
 
 Name:  Title: **SILVER LAKE TECHNOLOGY INVESTORS III, L.P.**By: Silver Lake Technology Associates III, L.P., its general partnerBy: SLTA III (GP), L.L.C., its general partnerBy: Silver Lake Group, L.L.C., its managing memberBy: 
 
 Name:  Title: 
 

***[Signature Page to Acknowledgment Agreement]***