Here are some commercials that aired during an episode of The X-Files:
1. Ford Mustang
2. WOFL-TV Fox 35 Station ID (1997)
3. Mad City sponsor & TV trailer
4. The Postman TV trailer
5. Ford Escort ZX-2
6. (same as #3)
7. Melrose Place & Ally McBeal FOX promos
8. Saturn Automobiles
9. Lotus Internet
10. HBO
11. Energizer Batteries
12. Starship Troopers TV trailer
13. World's Scariest Police Chases 3 & The World's Deadliest Swarms FOX promos
14. Beverly Hills, 90210 & Party of Five FOX promos
15. Scream 2 TV trailer
16. Isuzu Rodeo
17. The Lost World: Jurassic Park on Videocassette
18. 'The X-Files' will continue in a moment on FOX
19. Prudential Healthcare
20. T.G.I. Friday's
21. Downtown Disney
22. PSI Factory Fox 35 promo bumper
23. Alien: Resurrection TV trailer
24. Honda Accord
25. (same as #18 & #13)
26. The X-Files syndicated promo (Coming Up Next!)
27. Sentinel Classifieds
28. CarMax Auto Superstore
29. Silence of The Lambs Fox 35 promo
30. The Visitor & Millenium FOX promos
31. Stay Tuned for Scenes...
32. (same as #13)
33. The Rainmaker TV trailer
34. Toyota Corolla
35. Ten Thirteen Productions/20th Century Fox Television (1997)
36. Split-Screen Credits
37. (same as #2)
Video footage courtesy of everyone at archive.org