Alphabet wheel spin
Appears in 2 episodes, first in episode 243.
Every appearance
Episode 287 - Rhubarb Lemonade
Mel sets next week's adventure by spinning an alphabet wheel rather than choosing an event: "I'm going to refer to the spinning wheel again, I think, this week, Ollie. So the alphabet wheel will get a little spin from me later on." The spin itself is teased in the post-credits sting, "Ooh, it's a J. Hang on, wait. How far away is that?" Not in the known segment catalogue; flagged in case it is a recurring bit under a name the show uses elsewhere.
Episode 243 - Weekend Work
Immediately before the roving reports the hosts spin an alphabet wheel to pick a letter, "But first, let's spin our alphabet wheel and see what it comes up with" / "And it's a Y." It ties into the parkrun alphabet challenge, and the letter Y is called back three times ("having a Y for your name is also big helpful for the alphabet challenge", "come and get a Y", "And spinning the wheel for a letter Y").