Obscure References

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Across
  1. 3. Alphabetical order.
  2. 6. The amount of votes total in BFG 5. (num.) (6)
  3. 7. No ads, no __________, and no registration required. (10)
  4. 9. BFDIA 19 (4, 2, 4)
  5. 11. Cat + Buttered Toast (Name)(4)
  6. 13. The only female host in CBA. (8)
  7. 15. BFDIA 19 (3)
  8. 16. Fish (×7) (4)
  9. 18. Host of 5 Secondly Object Show: Bean's Show. (4)
  10. 19. Season 4 of CB.. (abbr.) (4)
Down
  1. 1. Flat earth. (7)
  2. 2. The code to unlock the easy secret puzzle in Puzzle Difficulty Chart. (non-word) (2)
  3. 4. H20, so that you know... (3, 3[LnL], 4)
  4. 5. On the team: "The Antagonists" in Battle for Salvation, and fought against Grandma. (12, 4)
  5. 8. Thing that looks like π. (2)
  6. 10. We thought we would live long lives and proper.
  7. 12. On the team: "The antagonists" in Battle for Salvation, and was recovered by Grandma till Happy Star took him, then becoming friends with Marker. (5)
  8. 14. The 27th letter in the alphabet. (9)
  9. 17. √-400 (I added this so this can be complete.) (num.) (?)
  10. 18. Possibly Season 5 of CB.. (abbr.)(3)