The beginning of the end of Blue Bloods starts on Friday, October 18, with the first of the last eight episodes of the long-running CBS drama, but the possibility of this world expanding has come up since news of its cancellation.

“Blue Bloods” stars Tom Selleck and Donnie Wahlberg got emotional while they were filming the ending of their long-running procedural. “On the last day, I was filming all my squad room scenes and it’s kinda like where I hold court as Danny Reagan, and Tom Selleck came in just to watch,” Wahlberg said on SiriusXM’s “Andy Cohen Live.”

Tom Selleck has starred on the hit CBS series, Blue Bloods, for 14 seasons ... so why is the network canceling a show that consistently performs well?