If Your Tv Changes Channels By Itself, There Could Be A Number Of Reasons. First, Your Remote Control Could Be Defective. If You'Ve Replaced The Batteries And Still Have The Same Problem, Then The Remote Control Itself Could Be Defective. Try Another Brand Or Model. Another Possible Cause Is That Your Tv Is Set To A Channel That You Didn'T Intend To Watch. If This Is The Case, You Might Want To Adjust Your Tv'S Settings. Another Possibility Is That You Have A New Programmable Dvr That Automatically Adjusts Channels. You Can Change The Channels That Your Dvr Watches By Adjusting The Settings On The Remote Control. If This Doesn'T Work, You Can Contact Your Service Provider.