Debuting on DVD with 24 firstseason episodes on three discs, Up All Night has an attractive cast led by Christina Applegate, Will Arnett, and Maya Rudolph, a relatable premise, good writing, and the kind of upbeat, affirming message most sitcoms mix in with the yuks. But it might be that what it doesnt havelike a laugh track, a studio audience, and the limitations imposed by being restricted to a couple of sets on a Hollywood sound stageis what lifts this show above others of its ilk.