Is it me or are ALL of the TV channels (network and cable) being EXTREMELY repetitive?

It seems three different channels are playing Prizoner of Azkaban over and over. Freakin Mythbusters plays the same damn show over and over. These aren't the only two. Everything is repeats of the same old crap.

I realize it's the 'off' season and pre fall but there are tons of other things we can repeat instead of the same frackin' thing over and over. Mythbusters has more than three episodes.