Scott and Duane discuss Andy Williams' beloved song "It's the Most Wonderful Time of the Year" from 1963. 
Notable versions we played:

Andy Williams
Andy Wiliams and Kathy Triccoli
Johnny Mathis
Harry Connick, Jr.
Barry Manillow
Kylie Minogue
Idina Menzel
Cliff Richard

Genre versions of the song we played:

Celtic Thunder (Celtic)
Brian Setzer Orchestra (Big Band)
Pentatonix (Acapella)
Brett Eldridge (Country)
Ainsworth Rose (Reggae)
Gold, Frankincense & Myrrh (Punk)
Classless Act (Rock)
First to Eleven (Hard Rock)
Beegie Adair (Jazz)

Silly versions of the song we played:

Nasal Recorder (Nose Flute)
MDRN (Dubstep Remix)
Raxlen Slice (Chiptune)
Adam LeFebvre (Barbershop Quartet)
Gonzo and Rizzo from 2006 A Green and Red Christmas (Muppets)

Here's the Staples "Back to School" commercial referenced in the episode.