1. First, Phoebe Dynevor and Regé-Jean Page's first day on set for Bridgerton — and Phoebe's first scene as Daphne — was when Daphne and Simon have sex in the library.
2. And Claudia Jessie and Nicola Coughlan's first day on Bridgerton included filming a scene outside where Nicola was holding a dog and wearing heels. Nicola ended up falling over three times, AND the scene didn't even make the final cut.
3. While filming the first episode of The Fresh Prince of Bel-Air, Will Smith would actually mouth everyone else's lines in the scenes that he was in, and this continued throughout Season 1.
4. Before production moved to Georgia for the rest of the series, The Vampire Diaires filmed the pilot in Vancouver, and Kat Graham said that it was "freezing" while she was filming some of her first scenes outside.
5. In order to bond during their first days of filming, the Friends cast would play poker and just get to know one another — this even inspired the Season 1 episode "The One With All the Poker."
6. During Camilla Luddington's first day on Grey's Anatomy for Season 9, Sandra Oh welcomed her by going to her trailer and blasting opera.
7. No one knew what Moira's accent was going to sound like until Catherine O'Hara filmed her very first scene on Schitt's Creek.
8. Emilia Clarke's first day on set featured her almost falling off a horse in Belfast — she actually yelled, "Please stop filming!"
9. And Maisie Williams' first day on set involved flicking the pigeon pie at Sophie Turner during one of their first scenes together.
10. How to Get Away With Murder creator Pete Nowalk knew that Viola Davis was going to take the show to new heights when she filmed the moment in the pilot when Annalise yells at Wes in the lecture hall.
11. Also, during the early days of filming HTGAWM, the first thing Viola told Pete was that she wanted to take off her wig in the first season. So that's how the iconic moment was born.
12. While filming the Modern Family pilot, Julie Bowen was pregnant with twins, so Claire was always hiding behind laundry or another character in the first episode.
13. And right after filming the pilot of Modern Family, Ed O'Neill called Eric Stonestreet and told him that he had seen the finished episode and said, "It's fantastic. Honestly. If this show doesn't go 10 years, I don't know what the hell I'm doing in this business."
14. One of the hardest scenes to shoot in the Gilmore Girls pilot was when Sookie is running through the kitchen. It had to be perfectly choreographed because it was actually a reshoot.
15. The first scenes filmed for Killing Eve were when Villanelle is in Tuscany and we see her first kill. Prior to filming this episode, Jodie Comer went through a lot of training because Villanelle would be doing a lot of fighting and climbing.
16. Misha Collins was super "nervous" when he was filming his first episode of Supernatural. In fact, they filmed his scene multiple times, and the note he got from the director was, "Try not to make him [Castiel] so spooky."
17. During the first weeks that Lost was filmed, there was intense rain in Hawaii. While they were filming the moment when they find the plane's cockpit, there was actually a flash flood and some of the filming equipment got washed away.
18. The first scene that Josh Holloway ever filmed for Lost was when Sawyer gives his big speech about having a gun after he kills the polar bear on the island.
19. When filming began on The Haunting of Hill House, they immediately began to practice for "Two Storms," the episode that consists only of five takes.
20. In order to keep the Green Arrow suit a secret while they were filming the Arrow pilot, Stephen Amell had to walk around the set with "like four coats on."
21. And finally, Dianna Agron only got the role of Quinn Fabray on Glee a day before the pilot started filming.
