Very Shawn-centric as that was what was requested, but there's plenty of everything.
Cap size ranges from 720x480, to 480x360, dependent on the qualities of the vids I could find.
Do what you want with them, but comments are nice.
Caps from every episode except Boy Meets Girl and She Loves Me Not, which I haven't been able to find decent avis of. If you see them, give me a shout!
Teacher's Bet, The Play's The Thing, The Fugitive
Boys II Mensa, The B-Team of Life, Class Pre-Union, Cory's Alternative Friends
It's A Wonderful Night
I Dream of Feeny
Santa's Little Helper
Father Knows Least, Killer Bees, Pilot, Grandma Was A Rolling Stone, On the Fence, Once in Love With Amy
And as a bonus:
S6.7: Everybody Loves Stuart (I previously capped this, but these are better quality.
Caps of the credits, all seasons
The first two caps I somehow failed to include in the It's A Wonderful Night rar, so here they are: