Not much for this letter yet.  I was pushing it trying to get a top 5, but there is no point wasting time downloading something that just isn't worth the mention.  

1. Earthlapse TV ($2.99)

So, if you do a search for Fireplace on the Apple TV, you will get like 20+ apps that just show videos of fireplaces.  It's totally odd why there would be so many people making that type of app, mainly because the supply doesn't seem to support the demand.  Anyways, the function they perform is a moving photograph, or better yet a cinemagraph.  Earthlapse TV is that type of app, but it shows something cool and unique...which is ISS footage of the Earth from above.  Great looking city light scenes, weather formations, auroras.  Just really interesting stuff.

2. ESPN (Free)

Live Video and on demand content from ESPN of every sport they broadcast.  Also has ESPN 2, ESPN 3, ESPNU, and SEC networks content.  

3. EWTN (Free w/ in-app purchases)

A pretty big name in Catholic TV.  You get Live TV and radio streams as well as on demand content.