Our tv is a Jensen. To scan channels, push Menu on the remote. Use right cursor button to move to Channel. Use down cursor button to move to Scan. Push OK or right cursor to start scan.
To see DVD, select Source on TV remote. Use cursor to move to AV2 and push OK. We do not have a rear tv, so can't speak to that.
2012 Forest River Sunseeker 2300 Chevy