If you're lucky you'll get one of those meters that reports what you are watching
Here's how to have some fun
On the day you start turn on channel 2 for 24 hours, then switch to channel 4... Everyday change the dial to the next station up and repeat the process once you have viewed all the nation/local stations, then return to channel 2 and start the process all over again.
It will give them something to think about
Did get 2 Crisp Unc.'s to spend though