I originaly planned on rewatching the first 3 seasons of Mad Men on DVD over about a month before season 4 premires, but ended up watching them all over 10 days.
Remember that German/Austrian psychologist, Dr. Greta Guttman, who did research back in season 1 and only appeared in a few episodes? Now remember that Sterling-Cooper organizational chart (that Sterling got left off) in 3.06 “Guy Walks in Advertising Agency”? If you look closely she’s apparently still employed and the Head of Research.
Nice attention to continuity, but it does lead to the odd situtation where SC has a foreign-born (possibly Jewish) woman heading an entire department :dubious: and this went unmentioned onscreen. Granted neither Don (nor anybody else besides Pete) seems to value research much, but it’s still odd. Like the writers just dropped the character and forgot about her and a set designer suddenly remembered.
Also Joan’s fiance/husband, Greg Harris (aka Dr Rape), was played by a different actor with dark hair the first time we saw him. And in the season 1 Peggy appears to start out dressed like the other secretaries, then dress like a schoolgirl, and switch back to dressing like an adult a couple times before season 2.