1. **Magnum P.I. & Simon and Simon**: Frequent crossovers.
2. **Magnum P.I. & Murder She Wrote**: Crossovers.
3. **Magnum P.I. & Hawaii 5-0**: Mentions of Hawaii 5-0 and Steve McGarrett.
4. **Magnum P.I. & Columbo & Kojak & The Streets of San Francisco**: Episode featuring a convention of TV detectives.
5. **Simon and Simon & Whiz Kids**: Crossovers.
6. **Homicide: Life on the Street & Simon and Simon**: Historical link through John Adams and George Washington.
7. **Homicide: Life on the Street & St. Elsewhere**: Alfre Woodard reprised her role.
8. **Homicide: Life on the Street & Law and Order**: Several crossover episodes.
9. **Law and Order & Law and Order: Special Victims Unit**: Spin-off from Law and Order.
10. **Law and Order & Picket Fences**: Heart harvested from a shooting victim in Baltimore and rushed to Chicago Hope.
11. **Homicide: Life on the Street & Chicago Hope**: Shooting victim received by Dr. Jeffrey Geiger.
12. **Chicago Hope & Picket Fences**: Crossover.
13. **Chicago Hope & Early Edition**: Characters interacted on an episode of Early Edition.
14. **Early Edition & Martial Law**: Sammo Law worked with Gary Dobson.
15. **Martial Law & Walker, Texas Ranger**: Two-part episode with Walker and Sammo Law.
16. **Walker, Texas Ranger & Sons of Thunder**: Spin-off from Walker, Texas Ranger.
17. **The X-Files & Strange Luck**: Reference to Fox Mulder.
18. **The X-Files & Homicide: Life on the Street**: Detective Muench arrests the Lone Gunmen.
19. **The X-Files & The Lone Gunmen**: Spin-off from The X-Files.
20. **The X-Files & Picket Fences**: Reference to events on the other show.
21. **St. Elsewhere & The Bob Newhart Show**: Mr. Carlin appeared as a patient.
22. **The Bob Newhart Show & Murphy Brown**: Carol Bondurant worked for Murphy Brown.
23. **St. Elsewhere & Cheers**: Characters visited the Cheers bar.
24. **Cheers & Wings**: Frasier and Lilith visited the Wings gang.
25. **Cheers & Frasier**: Frasier is a spin-off from Cheers.
I hope this covers all the connections you mentioned. If you need more details or additional information, feel free to let me know!