We use a TIVO remote to change channels on the cable box and this works fine. But frequently when fast forwarding the TIVO the Zenith TV will change away from channel 3, either higher or lower. We have the original Zenith remote and can change back to channel 3 but this is extremely annoying. New batteries in the TIVO remote didn't solve problem. Any suggestions?

Televison & Video - Zenith - SY2549S TV