That's a good way to do it too -- no doubt. This is just an alternative approach that some like (including me), especially for those of us that use a two screen approach to watching TV.
For example, as I'm typing this Titanic is on the big screen (premium channel), which I've seen many times -- and even owned on DVD. I know it well enough, I can enjoy "watching it", without giving it 100% of my attention.
I set it up earlier today when I was watching one of my virtual channels, and the auto switch happened when the movie started. I haven't touched the remote since this morning. This just offers another option for your TV experience. 



