An episode where Rick gets kidnapped??

I don't recall a Silver Spoons episode like that.

But there was a similiar scenario in a Diff'rent Strokes episode.

In it, Kimberly and Arnold are cold and stranded somewhere, and unwisely accept a ride from a stranger (a middle aged man who, at first, seems like a really nice guy).

The man takes them back to his apartment. Apparently, he was a photographer of some kind, who had worked with the space program. As Arnold is very impressed by this, the man takes him into another room with a TV to show him a videotape (I'm fairly certain the VCR was of the type you described) on the subject. He then secretly locks Arnold in the room, while becoming more "friendly" towards Kimberly.

When the video is over, Arnold attempts to leave the room and discovers he's locked in. He bangs on the door and makes a lot of noise, until the man comes and ties him in a chair, put putting tape on his mouth (again, much in the manner you refer to). Eventually, Arnold frees himself and, escaping out a window, goes back to Mr. Drummond and the police for help.

At the episode's end, the man has Kimberly in his dark room and attempts to assault her. She manages to grab ahold of a dish full of chemicals, and throw it in his face. She goes to run out of the room just as the police burst, and arrest the man.

Could this possibly be what you're remembering?

Thanks, and have a great day.

Sam

only thing i remotely remember from this show that was similar was when Rick ran away on his own.

I think Webster had a kidnapping episode too.