I just found a very interesting and funny YouTube channel which brings together an actor playing the part of a therapist interviewing famous classic TV child stars of the past appearing as their TV characters. Some of these are very funny. Here's a few I think you will like:

Erin Murphy - Tabitha ("Bewitched") (https://www.youtube.com/watch?v=tuoCSphvvG8)

Larry Matthews - Richie ("The Dick Van Dyke Show") (https://www.youtube.com/watch?v=tfBafsJFq4Y&t=116s)

Dawn Wells - Mary Ann ("Gilligan's Island") (https://www.youtube.com/watch?v=QXj-Ibinpzo)

Jon Provost - Timmy ("Lassie") (https://www.youtube.com/watch?v=IDhUqU5Bnj8)

Kathy Garver - Cissy ("Family Affair") (https://www.youtube.com/watch?v=2_EQac-5A6Y&t=30s)

Johnnie Whittaker - Jody ("Family Affair") (https://www.youtube.com/watch?v=ZepEvtMnoQQ)