Task: Question Generation
Input (English): Context : Rod Serling, who had gained fame from an earlier series, The Twilight Zone, served both as the on-air host of Night Gallery and as a major contributor of scripts, although he did not have the same control of content and tone as he had on The Twilight Zone. 
Subject : Night Gallery 
Relation : original network
Output (English): What was the station that aired Night Gallery?