Override default actions?

My game has a television. I tried to tell Inform what to do when the player enters “watch television”, but seem to have come up against some assumptions by Inform’s creators. It seems that it sees “watch” as a synonym for “examine” so I tried using “instead of watching…” but Inform is having none of it. Is there a way to modify/remove default actions?

"Instead of examining the television: "…

That will cover “watch” if it is a synonym.

The small instead rule is fine if you only want to override it in one case, but if you want to override a default action on a more game-wide scale, you can say ‘Understand the command “watch” as something new’ or whatever and then write in the behavior you prefer.