Maybe it's just the parent in me, but after the second cycle of the children being inconsiderate, I would take away their access to the remote control entirely. That way, they would only be able to watch shows with explicit parental involvement. Likewise, they would get the opportunity to see all the wonderful commercials since they would have no control after a program was started by the parent. Spending your money to address their discipline problem is just plain silly. Not having TV when you are gone just might wake them up. Clearly, your "riot act" approach is not effective. Loss of TV control just might do the trick.
Another thought, parental controls CAN be applied in a variety of ways to limit what access the children have to channels and programs.
Also, remember that removing access to the R Button would in NO WAY limit the access to the recording function. "RECORD" can be selected in the Info menus.
Last edited by mjh99; 06-19-2014 at 12:52 AM.
Reason: Correction and addition