A: Arrested Development
B: Breaking Bad
C: Cheers
D: The Dick Van Dyke Show
E: EZ Streets
F: Freaks and Geeks
G: The Good Place
H: Hill Street Blues
I: I Love Lucy
J: Justified
K: The Kids in the Hall
L: The Larry Sanders Show
M: Mad Men
N: Northern Exposure
O: The Office
P: Parks and Recreation
Q: Quincy, M.E.
R: Rectify
S: Seinfeld
T: Taxi
U: Undeclared
V: Veep
W: The White Shadow
X: The X-Files
Y: Young Justice
Z: Zoom

Most surprisingly competitive letter:
W: The White Shadow, The Wire, WKRP in Cincinnati, The Wonder Years