[Steve D.]

In early 1990 I purchased RCA's first full stereo TV. This was a Dimensia table model. I also purchased several of the Dimensia components. The TV is long gone but I still have some of the components. The jack panel was extensive and the remote was huge. Posting the jack panel diagram from the original owner's manual which I kept. The RCA you saw is a later later model.
As an aside, RCA discontinued the "Dimensia" name after many associated it with the disease common among seniors.

-Steve D.