There's nothing 'on television' right now. [=there are no programs that I would like to watch now]
I recognize your face. Are you 'on television'? [=do you appear in a television program?]
What is 'on the television' [='on TV', ('chiefly Brit') 'on (the) telly'] tonight?
(..) The Grunion is mine! Ooh! Come on, Sherman. Come on! Whoo-hoo! Yeah! If you want to watch television before I get home... simply press "input" three times... and then use the remote control as usual. Yes, Sherman. (..)2014 Mr. Peabody & Sherman