Generate a correct and concise answer for the question based on the words in the context.

[EX Q]: Context : The Smothers Brothers Comedy Hour was an American comedy and variety show television series hosted by the Smothers Brothers and initially airing on CBS from 1967 to 1969.
Question : What is the original channel that The Smothers Brothers Comedy Hour played on?
[EX A]: CBS

[EX Q]: Context : John Bardeen was born in Madison, Wisconsin on May 23, 1908.
Question : What city is John Bardeen associated with?
[EX A]: Madison

[EX Q]: Context : SpaceFM was originally developed from a fork of the legacy PCMan File Manager and later PCManFM-Mod. The internal virtual filesystem (VFS), was retained and extended.
Question : The SpaceFM is based upon what?
[EX A]:
PCMan File Manager