I'm still trying to figure out exactly which of the films the TV series is considering canon.
With the most recent episode, Ash is being told he murdered his 'friends' -- presumably, this is drawing from the first film for continuity.
But Evil Dead 2 retconned that continuity and trimmed out all but Linda.
On the other hand, Cheryl was also brought back for the series, and Cheryl didn't appear in the second film.
Additionally, whether we explicitly include AoD or not, the second film is where Ash loses the hand -- but the second film ends with Ash in the 13th century, which makes AoD a requirement for him being present again in the modern world.
I guess we can go with a fusion of film continuities, in which the first and second are merged but the ending of the second is discarded.