Question: The network that aired People in Conflict spent several years trailing what rival network? 
Sentence (from "CTV Television Network"): Since 2000 it is owned by the Bell Media division of BCE, Inc. It is Canada's largest privately or commercially owned network, and has consistently been placed as Canada's top-rated network in total viewers and in key demographics since 2002, after several years trailing the rival Global Television Network in key markets.
Relevant evidence: Yes