The whole "The Dick Van Dyke Show" is available for free on YouTube, I highly recommend it.

https://www.youtube.com/watch?v=x-HsXBPWH3Y&list=PLtbMv4lXX2...

Good starting points would be the Christmas Special (Alan Brady Presents), “It May Look Like a Walnut” and “That’s My Boy” (just off the top of my head). There are two episodes where we got to see Van Dyke’s Stan Laurel impersonation which was absolutely amazing. Given how much he drank and smoked back in the 60s and 70s it’s a miracle he’s still on earth, but he is definitely a treasure.

Is it commercial free? Also available in Prime Video and Peacock Premium if you have those.