There isn't much of a difference. They are both past tense. As for context, you can use both sentences to answer the question: What did you do yesterday?
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
Anonymousa) We watched TV all night.A friend: "What did you do yesterday?"
Anonymousb) We were watching TV all night.The police: "One of your neighbors was murdered at 10 o'clock last night. Wh