My Tivo dvr has started to do some strange things. 1. When changing channels with remote up and down button it will skip a channel. I must put in the channel number to get channel it skipped. 2. When i am on a music channel and punch in a channel number dvr will not respond. I must use the remote to go up one channel and when the channel guide comes up I can enter the channel number. I also notice on firmware watcher new software for THR 22 is 0x01B2. Is this correct? TIVO running Panasonic Plasma ED, Sony Surround Receiver.