Watching a 24 h ultra on the track might be their thing.
Well. Earlier this summer, Therese Falk attempted to break the 24h treadmill world record. About 800 000 viewers tuned during the live stream/broadcast on VG/VGTV, so about 15% of the population.
Side note: There is a yearly 24h ultra on track in Norway; Bislett 24h - it's run on the 546m indoor track below the stands at Bislett stadium. Time to whisper a few words in the ears of the NRK people, I guess.