His birthday was moved to coincide
with the TRADITIONAL pagan holiday...
The Big Bang Theory Season 3, Episode 11
It's a TRADITIONAL Swiss breakfast dish.
The Big Bang Theory Season 3, Episode 15
about TRADITIONAL
Amish barn raising.
The Big Bang Theory Season 12, Episode 7
The TRADITIONAL
choice
The Big Bang Theory Season 5, Episode 14
to the TRADITIONAL
"kissing of the buttocks."
The Big Bang Theory Season 12, Episode 7