NFL approves flex scheduling for Thursday Night Football on Prime - Sports Illustrated
NFL 2020 Schedule: Primetime Games, Rams & Raiders Open New Stadiums & More – Deadline
NFL owners OK flexing of Thursday night games - ESPN
Why NFL flexes games and how changing the schedule works – NBC Sports Bay Area & California
Thursday Night Football: NFL Teams Now Allowed To Play Two Short-Rest Games A Year
Creating the NFL Schedule
NBC Sunday Night Football - Wikipedia
NFL 2023 - WEEK 5 Schedule
NFL tables 'Thursday Night Football' flex scheduling, but ups number of times teams can play maligned timeslot
NFL approves 'Thursday Night Football' flex scheduling — but only for a specific 5-week stretch of season