If I power on my Sony TV & STB together, the remote control (P265) does not work at all - for the 1st 5 minutes. After about 5 minutes (seems like an eternity) the remote works fine. But if I turn the STB on 1st, then select whatever channel I want to watch (if I know), then turn the TV on, I can watch that channel. But I still can't change channels or use the menu. This happens EVERY TIME! What causes this behavior?