Here are some WGN commercials that aired during the WGN Late Movie or Marquee IV presentation of House of Secrets:

1. J.G Wentworth
2. WGN: Entertaining America Station ID
3. "This Marquee IV presentation will continue after these messages"
4. Merck Manual of Medical Infomation
5. Nestle Carnation Instant Breakfast
6. Pond's Institute
7. Pedialyte
8. Finesse
9. "WGN's Late Movie will return after these messages"
10. Ovaltine Chocolate Milk
11. Gold Bond Foot Powder
12. Christian Children's Fund
13. Live Psychics
14. The Will Rodgers Institute
15. WGN 9 Late Movie bumper
16. (same as #3)
17. Halls Cough Drops
18. Sudafed
19. Sounds of The 80s Soundtrack
20. Clear-Eyes drops
21. Friskies Cat Food
22. (same as #9)
23. The Magnificent Mile Lights Festival WGN promo
24. Tile Outlet
25. (same as #13)
26. Globe $10,000 LongLife Policy
27. Dish Network (Christmas)
28. (same as #15 & #3)
29. Wrigley's Extra Chewing Gum
30. Friskies' Mighty Dog Food
31. (same as #7)
32. Salon Selectives Shampoos
33. (same as #5, #9, #24 & #13)
34. The Money Wrapper
35. Babe Winkelman's Outdoor Secrets WGN promo
36. Tom Raper RV's
37. (same as #15, #3 & #21)
38. Alka-Seltzer Plus
39. The Phantom Thunder Vacuum
40. Cool Mint Listerine
41. E-P-T
42. (same as #9)
43. Crank it Up Song Soundtrack
44. (same as #13)
45. WGN 9's Child Adaption (For Kids' Sake)
46. (same as #15 & #3)
47. Professional Career Development Institute
48. (same as #29)
49. Aleve
50. Nestle Toll House Chocolate Morsels
51. (same as #9 & #13)
52. Sanford & Son Collector's Edition on Home Video
53. (same as #24 & #15)
54. House of Secrets end credits
55. Steve Krantz Productions/Multimedia Motion Pictures/Hearst Entertainment (1993)
56. WGN 9 Late Movie closing bumper

Video footage courtesy of everyone at archive.org