Here are some commercials that aired during episodes of I Love Lucy & Harry and The Hendersons:

1. Head of The Class syndicated promo (Weeknights at 6:00pm on Fox 61!)
2. BP Gasoline
3. Married... with Children & Top of The Heap FOX promo
4. WUSY-FM US 101's Burt Reynolds Brain Buster promo
5. WDSI-TV Fox 61 Chattanooga Station ID #1 (1990)
6. Tucks Pads
7. Caladryl Spray
8. True Colors FOX promo
9. Star Trek: The Next Generation Fox 61 promo
10. Thighmaster (R.I.P. Suzanne Somers)
11. I Love Lucy end credits (partial)
12. WDSI-TV Fox 61 Chattanooga Station ID #2 (1990)
13. Wendy's Bacon Mushroom Melt
14. Twix Cookies-N-Cream
15. WCW at UTC Arena in Chattanooga
16. (same as #1)
17. Domino's Pizza
18. Purina Dog Chow (Mark Mothersbaugh doing the music?)
19. Reese's Peanut Butter Cups
20. (same as #2)
21. An Evening with Burt Reyonlds at The Tivoli promo
22. Eyear Optical
23. WTCI-TV 45 Auction Office
24. (same as #17)
25. Sun Chips
26. OXY Night Watch
27. White Oak Dance Project
28. (same as #2)
29. Perfect Strangers syndicated promo (Monday Night at 6:30pm on Fox 61!)
30. Harry and The Hendersons end credits
31. Amblin Entertainment/MCA TV Exclusive Distributor (1990)
32. Super Force Fox 61 promo bumper

A very special thanks goes to Henry Hanson for lending me this video footage!
All credit and courtesy of this content goes to him!