Watching the Tigers vs. Yankees opener on MLB.TV (Premium) via Apple TV (via WiFI) I was very disappointed in the quality of the picture - frequent pixilation, staccato action and picture freezing. I went to the Apple Store where I bought on Tuesday - and got not any help. They did not informed that MLB.TV was available on Apple TV - neither yesterday, nor on Tuesday, when I purchased it. The best they could offer was a "network" throughput problem.
I also watched the same game on my MacBook (UniBody) and the picture was flawless. The TV netcast was lagging behind the MacBook netcast. When the inning began on the MacBook the TV was just cutting to commercial between innings. On the way home, I stopped by a new Mac repair shop in my neighborhood to inquire. The owner said to increase my throughput for video, so I called Comcast.
The Comcast support rep happened to be a baseball fan with MLB.TV on Apple TV, who had the same problem as me, and was sympathetic. He immediately suggested I return the unit to Apple and have them test it, implying that there was a hardware defect or software update error. He had purchased his at Best Buy and he returned for the BB "Geek Squad" to examine, and BB tendered a replacement unit, which is working well.
Tomorrow I'm going to view the early games with my 20MBps and see what shows. If the problem resumes, I taking it to the Apple Store and demand a replacement unit.
I've been an Ex-Innings subscriber with Comcast for five years, and last season all games were HD, and looked well. Last season, I noticed that not a full schedule of games was on Ex-Innings, when there was not any reason for a blackout in my market, e.g. a Dodger/Padre game ws not available in San Francisco, when there ws no an evident programming conflict. I like that MLB.TV allows one can the choice of home or away broadcasts.
Also, I noticed these small font caveats with regard to premium feature of MLB.TV on this page
http://mlb.mlb.com/mlb/subscriptions/index.jsp?product=appletv
+*Features not available when viewing your MLB.TV® subscription on Apple TV.+
+**DVR Functionality on the PC is limited to MLB.TV Premium.+
No DVR functionality on Apple TV, which is a definite negative versus Ex-Innings on cable.
I report more tomorrow.