Where are you located? It could be that you are in a "local" area where the game (Colts/Lions) is blacked out. If so, is the game not available on a local channel?
I am in North Texas, the channel is just fine here.
Verizon FiOS TV, Internet, and phone
QIP6416, IMG 1.6.2, Build 08.58
Keller, TX 76248
This was already discussed here the other week.
Check this thread out for some information: