0
There is no details online as to when the Downtown Abbey Christmas episode will be repeated. You can check local listings in your area for show times.
False
No, downtown is a common noun, a general word for any downtown.
A proper noun is the name of a person, a place, a thing, or a title; for example:
About 15.75 miles with an estimated driving time of 24 minutes according to MapQuest.
Right, east