Q: You will be given a context, a subject and a relation. Your task is to generate a question based on the subject and relation. The generated question should include the given subject. Try to use a minimum number of words that are not present in either context, subject or relation while generating question.
Context : Our Friends in the North helped to establish the careers of its four lead actors, Daniel Craig, Christopher Eccleston, Gina McKee and Mark Strong; for Craig in particular, his part in the serial has been referred to as his breakthrough role.
Subject : Our Friends in the North
Relation : original network
A:
What was the original network of Our Friends in the North?