
Mr. Dressup would teach you how to draw and make arts and crafts. Later on, he would invite Casey (puppet) and Finnegan (dog puppet) to the Tickle Trunk, a steamer trunk full of clothes they would pull out and play "dress-up".
The Friendly Giant
The Friendly Giant would invite you up to his castle, where he would play music and read stories to his pals Rusty The Rooster and Jerome The Giraffe. At the end of each episode, Friendly would push a tiny little miniature chair in front of a fireplace and tell you he's saving you a seat for the next time you drop in.
The Uncle Bobby Show

Uncle Bobby was fun. Lots of guests and plenty of music and magic acts.
If you were lucky, Uncle Bobby and Bimbo The Birthday Clown...

...would read out a birthday greeting to any boy or girl that was celebrating that day.