5. Friends Season 10 — $10 million per episode.
7. The Crown seasons 1 and 2 — $7 million per episode.
9. The Walking Dead Season 1 — $3.4 million per episode.
10. The Falcon and the Winter Soldier — $25 million per episode.
12. The Mandalorian — $15 million per episode.
13. The People v. O.J. Simpson: American Crime Story — $6 million per episode.
14. The Boys Season 1 — $11.2 million per episode.
15. The Witcher Season 1 — $10 million per episode.
16. Insecure — $3.5 million per episode.
17. Downton Abbey series 1 and 2 — $1 million per episode.
18. The Morning Show seasons 1 and 2 — $15 million per episode.
19. Lost — $4 million per episode (the pilot cost around $12 million).
20. Mad Men — $3 million per episode.
21. And finally, ER seasons 4 to 6 — $13 million per episode.