
Continuity mistake: When Robert is leaving Ray's house, Ray is stood next to Debra. When the camera changes he is much further away. (00:09:55)
Continuity mistake: Just before Robert leaves he gives Ray and Debra the results. Debra has her hands clasped in front of her. Camera changes and they are on her hips. (00:10:00)
Visible crew/equipment: Frank goes off on a rant about tests dealing with "book smarts." When he does a boom mic briefly drops into view. (00:07:50)

Visible crew/equipment: Ray asks Debra how bad is it, and a boom mic drops into sight. (00:05:30)

Continuity mistake: At the start, Ray's sleeve is constantly altering between raised and lowered when looking at the bits of paper. (00:02:10)
Revealing mistake: When Ray runs out of The Shower at the start you can see the boxers he's wearing. (00:00:50)

Continuity mistake: Ray asks what kind of poses Marie's dolls were put in he has a bag in his hand up in front of his chest. Camera cuts and the bag is still in his hand but now down on the chair. (00:08:30)
Continuity mistake: The pen marks on Geoffrey keep changing size and thickness between shots when Raw tries to remove the mark. (00:02:30)

Continuity mistake: At the start, Ray walks in and opens the bag, camera changes and the bag is rolled closed again. (00:00:30)

I Love You - S1-E2
Visible crew/equipment: When Frank says he loves Ray, the camera pans across to Ray. When the camera pans, it goes past a boom mic that is in shot. (00:16:30)

Visible crew/equipment: When Ray is zipping up his pants after Debra lets her parents in the front door, you can see the boom mike directly above Lois' head. (00:06:10)

I Love You - S1-E2
Visible crew/equipment: When Robert says "I Love You Debra" the tip of the boom mic can be seen above Raymond. (00:17:20)
Answer: War.
By whom?
Edwin Starr.