BasysAZWell imagine my surprise yesterday evening when, after turning on the DVR box-A/V receiver-TV and finding it stuck on the last tuned channel, I turned off just the 5-year old Sony KDL-52W4100 LCD TV -- and could change channels on the DVR box!! After 20 minutes or so everything was working nominally, so the startup radiation issue looks like the root cause of the problem.
I couldn't find the precise settings that Becky recommended changing on the TV setup menu, but will now RTFM to see where they may be.
Thanks to both Becky and Domino for the right answer and the rationale behind it.
Start with the "PICTURE SETTINGS" beginning on page 32 of your manual.