National Football League on television - Wikipedia
NFL approves flex scheduling for 'Thursday Night Football
NFL owners approve 'Thursday Night Football' flex scheduling
Thursday Night Football' flex rules, explained: How NFL's
Is Thursday Night Football Hurting the NFL Brand?
NFL owners approve proposal allowing Thursday night games to be flexed
Use Of Emergency QBs Approved To Make Games More Competitive – NFL
NFL approves flex scheduling for Thursday Night Football
NFL approves allowing teams to play two Thursday games on short