During the BDO Blackthorn Masters back in 1985 Jocky Wilson played against Terry Down. The slowest player ever produced the longest 180 we have ever seen on camera. Also watch the second clip showing the end this match which is worth watching.
Longest 180 ever
https://www.youtube.com/watch?v=Lbl37YQLAUk
End of the game
https://youtu.be/x6qEAIVw2yg?t=236