Same issue here using LG PZ750 and Yamaha RX-V471. When I turn the TV on using the Fios One remote both my TV and receiver turn on...and I can't control the volume using the TV, only the receiver. If I turn the receiver off, then manually program ONLY my TV...everything works as expected (reflected in the settings menu), and I can control the volume using my TV. If I turn the TV off...then turn it back on, the remote automatically programs itself for the TV and receiver (reflected in the settings menu) and both the TV and receiver turn on again, I'm back to square one, and I've lost the TV volume control...can only control it via the receiver. This is really annoying as I don't want to turn the receiver on unless I explicitly do so with the receiver remote, so I can control volume on the TV, not the receiver. I hope there's a way around this...
Thanks