Say Goodbye to Daisy Miller - S5-E1
Visible crew/equipment: Near the start, after Rory tells Lorelai that Dean came over to borrow something, just as Dean opens the door the reflection of a crew member is visible on the door's window. (00:02:50)
Say Goodbye to Daisy Miller - S5-E1
Visible crew/equipment: At the start of the shot as Emily's luggage is placed beside the car and Emily is about to walk out the door, the boom pole is visible at the top left side of the screen and the boom mic is visible at the top center of the screen. (00:38:40)
Visible crew/equipment: When Maisy sends Buddy to the kitchen to bring Luke and Lorelai the food without garlic, in the next shot just as Maisy tells Lorelai, "It's nice to meet you," the tape mark is visible on the floor behind Maisy's feet. (00:17:35)
Tippecanoe and Taylor, Too - S5-E4
Visible crew/equipment: After Lane and her bandmates listen to the tape with the song Believe It or Not (theme song of The Greatest American Hero), when Zack says, "I'm not wearing smelly wood on my face," the T-mark is visible on the floor at Brian's feet. (00:29:00)
Norman Mailer, I'm Pregnant! - S5-E6
Visible crew/equipment: While Lorelai is looking for her keys, when she takes her toasty socks out of the oven and puts them on, the T-mark is visible on the floor beside her. (00:01:20)
Visible crew/equipment: While Liz and TJ are arguing in Luke's bathroom, when Luke puts the lid on the plastic container with the cheesecake for Lorelai to take home, we can see the shadow of the bouncing boom mic on the cabinet over the stove. (00:36:25)
Visible crew/equipment: When Rory comes out during the party to meet Dean, he says, "I don't belong here, not anymore, do I?" then as he says, "You look good," a boom mic drops over his head. (00:39:20)
Visible crew/equipment: After Emily asks Lorelai to help her with dating etiquette, when Lorelai and Rory leave the house some filming equipment is visible at the top left side of the screen. (00:20:20)
Visible crew/equipment: When Lorelai and Christopher are at the Dragonfly looking at the lunch menu, filming equipment (looks like the second camera) is visible at the left side of the screen, and it's visible again when Lorelai describes Michel and the bathrobe bandits. (00:22:15)
Visible crew/equipment: When Loralie walks out of the kitchen with a bowl of popcorn you can see the camera is slightly covered on the left side of the screen. (00:49:53)
Visible crew/equipment: During the Dragonfly's staff meeting, when Michel stands up and announces, "We have a problem with some honor bar discrepancies," the T-mark is visible on the floor between Michel and Lorelai. (00:06:30)
Visible crew/equipment: When Emily enters the diner and says hello to Luke, two yellow T-marks are taped to the floor, then when she approaches the counter the actor's blue tape mark is visible at Luke's feet, and as Luke walks to the coffeemaker another tape mark becomes visible. (00:40:20)
Visible crew/equipment: At the start, Lorelai brings home the bags of assorted tacos, and when Lorelai stands at the counter pouring coffee, we can see the red T-mark taped to the floor where she's standing. (00:00:50)
Visible crew/equipment: In Logan's apartment, when Lanny is telling Logan that Cassandra called, an orange T mark is visible on the carpet to the right of Rory. (00:05:01)
Visible crew/equipment: After Luke admonishes Sookie and takes the ladle away from her, when it cuts to Logan's dining room we can see the crew's mat with blue gaffer tape at the bottom left corner of the screen. (00:26:25)
How Many Kropogs to Cape Cod? - S5-E20
Visible crew/equipment: When Emily notices her sewing box is missing and picks up the replacement there is a mic in the top right corner. (00:34:35)
Blame Booze and Melville - S5-E21
Visible crew/equipment: When Sookie and Jackson rush out of their house because Sookie's in labor, just as Rory tells Lorelai that they should have thrown the baby shower earlier, we can see the reflection of the boom pole and microphone on the hood of the van. (00:12:35)
A House Is Not a Home - S5-E22
Visible crew/equipment: When Mrs. Kim calls Gill over to look at his van, he tells her it's not big enough for a tour van, and two tape marks are visible on the ground - one where Lane stands and one where Mrs. Kim stands. (00:37:05)
Chosen answer: Lorelai and Christopher get married impulsively in Paris but they get divorced shortly after returning home. I don't know the exact number of days or weeks but they definitely weren't married for more than a couple of months.