Pre-cache TV Guide information

[CodeMonkey]

I recently switched to getting guide information for Dish network (sat in US) from basic cable. This increased the number of channels by a factor of about 5. When I start GBPVR and select TV Guide the first time, it takes about 15 seconds now to display the guide. The first time this happened I thought the app had hung since it was unresponsive. Once it does come up the app behaves fine and subsequent TV Guide callups are quick (since the guide data has been loaded).

I would suggest loading the guide data in app startup so that even the first callup of the TV Guide is quick.