? It’s 1963, and we’re watching a show about a show within a show putting on a show for Christmas. Don’t ask us to make sense of it. We can’t stop tripping over our own home furniture.  ****  ? Guest:  Tim Babb (Can’t Wait for Christmas Podcast, @TimBabbComedian, @ChristmasPod).  ****  ? Topics & Tangents:  1. Dick Van Dyke as Tubby the Tuba.  2. 8 great little details you never noticed in The Dick Van Dyke Show Christmas episode (MeTV).  3. Every Episode of The Dick Van Dyke Show, Ranked (Vulture).  4. 92-year-old Dick Van Dyke dancing to Step in Time.  5. Dick Van Dyke in Mary Poppins Returns.  6. John Brown’s Body.  7. Key & Peele’s Negrotown sketch and the trope of interrupting someone’s song.  8. The Dick Van Dyke Show cast reunites on Comic Relief, 1992.  9. The Official Dick Van Dyke Show Book’s history of I Am a Fine Musician.  10. The theme song’s secret lyrics.  ****  ? Retro Commercial Break:  Learn Not to Burn: Holiday Fire Safety PSA, 1977.  Also mentioned, this Fire Safety PSA with Dick Van Dyke pretending to be a door.  ****  “The Dick Van Dyke Show” and “The Alan Brady Show Presents” © 1963 Calvada Productions.  Say hi on Twitter, Instagram, and Facebook.  Theme song by Bronwen’s Ghost.  Full show notes with links at adventcalendar.house.