In the eighties, master ventriloquist Paul Winchell made some appearances where he "aged" his two main dummies, Jerry Mahoney and Knucklehead so he could do material about how they'd all gotten older. For reasons I'm not sure I can explain, the bit he often did with the older version of Knucklehead was all about "Knuck" coming out of not just the suitcase but the closet and admitting he was gay.
Here's a clip of part one of his routines with Jerry in which they lip-sync to a song Winch recorded many years earlier. There are a couple of interesting things about this, one being that Dr. Paul's voice had gotten lower so you can hear how he and Jerry both changed over the years.
Another interesting thing may not be visible to you on the small screen but I noticed it when I watched a good video of this performance on a large monitor. While miming to the record, Winchell was of course moving his mouth to match his old voice track…but at times, he was also — subconsciously, one assumes — doing Jerry's lines in order to keep time so you can occasionally catch his lips and Adam's Apple moving for Jerry's lyrics even though he wasn't singing them aloud. (I once asked Paul if when he did his act on radio or for records, he moved his lips when speaking for Jerry or Knucklehead. He said he usually would but sometimes, he'd forget.)
And thirdly, the performance is really convincing and the audience seems to have really loved it. At one point, Paul and Jerry are singing different lyrics against each other…obviously recorded in the studio in separate takes and then combined. But I thinks some folks watching this live momentarily forgot it was a prerecorded track and applauded Winchell's "incredible" feat. Whatever, it's great just to see a little more of Winch in action…