Here’s a list I made of when the Elvira segments are during all 4 movies of her 2021 Shudder special:

Elvira: Mistress of the Dark
Beginning
Middle – 50:52
Ending – 1:44:20

House on Haunted Hill
Beginning – 2:30
“Pour me some wine” – 16:32
Middle – 38:56
Ending – 1:19:29

City of the Dead
Beginning
Middle – 39:19
End – 1:21:10 (“Burn, Witch, Burn” song)

Messiah of Evil
Beginning
Quick interjections – 19:18 & 19:31
Zipper pick up lines – 32:42
Bad things happen in the fabric softener aisle – 43:14
Identifying bodies under sculptures – 53:50
End – 1:34:44