[Mark Padgett]

Originally Posted by BillyMac

You mean "Home Improvement". "Tool Time" was Tim Allen's cable TV home improvement show, that is, a show within a show. In "Home Improvement" it was never really known what Wilson (Earl Hindman) looked like, because there always was some clever way of hiding part of his face from view. His face is briefly revealed at the end of the final episode when the entire casts comes out to take their bows for the show's final curtain call. However, Wilson's full face can be seen in a few episodes, such as at a party or sitting down cutting apples.

So, since Wilson never appeared on "Tool Time", I was right.