The Dark Shadows Alphabet Game

L is for liquor. 

M is for the Moon Poppy.

N is for newspaper

examples

[spoiler]Desmond gets old newspapers under the influence of the "Head" - and Count Petofi sees a 1969 (or whatever date it was) newspaper when he briefly makes it to his future.[/spoiler]

O is for obnoxious. Apply it to any Roger Davis character of your choosing. 

P is for Peter Guthrie

Q is for quiet on the set.  

R is for Rachel Drummond. Can't believe that one wasn't on the list already.

Alondra

S

Sobbing (sobbing woman sound heard in the middle of night at Collinwood early in the series)

T is for Toy Room

U is for Unholy Union.

V is for VTR (as on the take slates in the Collector's Series)

W is for Wrench (Burke finds it in the front seat)

X is for xenogenetic, when Barnabas becomes a vampire which is different from what Joshua and Naomi intented. [stretching believe, I know]

Y

Yen (Vicki's adult foundling home roomate Sandy suggests that if Vicki has a yen for little fishing villages, that she should go out to Long Island and "have a ball!" - as opposed to moving to Maine.)

X is for xenogenetic

Great word!

Z is for Zap, which is what I used to call it when a vampire bit somebody on Dark Shadows.  I don't know if anybody else called it that.