Which Rescue Ranger is Chip? Which crotchety old Muppet is Waldorf? Let's settle this once and for all.
1. Statler and Waldorf
Ornery Muppets: In this photo, Waldorf is on the left (your left).
2. Siegfried and Roy
Masters of the Impossible: Siegfried Fischbacher is on the left.
3. Chip and Dale
Rescue Rangers: Dale, with the red nose, is on the left.
4. Turner and Hooch
Buddy Cops: Hooch, the dog, is just barely on the left.
5. Ed and Larry
Minor West Wing Characters: Larry is on the left.
6. Ben and Jerry
Ice Cream Men: Jerry is on the left.
7. Tom and Jerry
Cartoon Cat and Mouse: Jerry is on the left.
8. Itchy and Scratchy
A Different Cartoon Cat and Mouse: Itchy, the mouse, is on the left.
9. Lewis and Clark
Westward Explorers: Meriwether Lewis is on the left.
10. Hall and Oates
American Musicians: Daryl Hall is on the left.
11. Chang and Eng
Prolific Conjoined Twins: Eng is on the left. (Remember, we mean "in the photo." Chang was on the twins' own left.)
12. Ax and Smash
Demolition: Smash is on the left.
13. Trinidad and Tobago
Islands: Trinidad is on the left. The big one.
14. Ren and Stimpy
Nicktoons: Stimpy is on the left.
15. Mary Kate and Ashley Olsen
Wealthy Former Child Stars: Ashley is on the left.
16. Laverne and Shirley
Shotz Brewery Employees: Laverne is on the left.
17. Phineas and Ferb
Disney Stepbrothers: Ferb Fletcher is on the left.
18. Tippecanoe and Tyler, Too
1840 Running Mates: William Henry Harrison, "The Hero of Tippecanoe," is on the left. Though I guess the "Tyler" part kind of gave that away.
19. Bo and Luke
Dukes of Hazzard: Luke is on the left.
20. Coy and Vance
Replacement Dukes: Vance is on the left.
21. Dick Sargent and Dick York
Darrin Stevenses: Dick York is on the left.
22. Bosc and Bartlett
Famous Pears: Bosc is on the left.
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I know I'm just scratching the surface. Keep this cheat sheet going in the comments.
Image credits: Statler and Waldorf (Muppet Wiki); Siegfried & Roy (Michael S. Yamashita/CORBIS); Ben and Jerry (Wikimedia/Dismas); Ax and Smash (Action Figure Pictures);Map image via Shutterstock; Olsen Twins (Wikimedia/David Shankbone); Coy and Vance (TV Time Warp);Pear images via Shutterstock;