I have talked plenty about the NFL RedZone channel on Comcast in the past. If you don't know what it is already, check out this post, which explains it in detail.
If you have yet to get a chance to experience the NFL RedZone channel for yourself but want to watch it, then I have good news for Comcast users. This Sunday there will be a "Freeview" of the NFL RedZone channel, allowing you to get a free preview of what is probably one of my favorite channels on all of TV. There are no strings attached; all you have to do is turn on your TV starting at 1 p.m. ET, flip to the NFL RedZone channel (if you have digital cable) and then sit back and watch nothing but football for around six straight hours. This will especially be good if you are a Lions fan out of the area, as the NFL RedZone channel will keep you updated on everything going on in the Lions-Eagles game.
For more information on the NFL RedZone channel on Comcast, click here or call 1-800-COMCAST.