When I switch to the above channels I get picture and sound but with in 30 seconds, I get a message "Searching for Signal" and there is no audio or video.
can you post yr level and quelity.if its low I will suggest you to go to another bird and then come back to yr ndtv or cbn on nim 2.if still want work do last button on remote to swith between bids and sometime pic will stuck on cbn or ndtv.