HBO is overall, a good channel to invest a few bucks into your cable bill for. It features hot original series like Oz and Six Feet Under. On top of that, they are frequently playing good movies and updating on their movie selection.
Another good feature to HBO is their Real Sex show. Thats probably the #1 reason I have HBO. Real Sex is the closest youll get to pornogrophy without calling it porn. It is truly great. On that show, they mess around at sex poetry clubs, make fake woman toys, and men substitutions. Then, they show the uses for each one and it really is great, I highly recommend this channel ;)