*RARE* Semi-Fast Metropolitan Line Not Stopping At Wembley Park

The train diagrams suggest that fast and semi-fast Metropolitan Line trains skip Northwick Park and Preston Road in the peak hours, with some southbound services additionally not calling at Wembley Park. For some reason, this northbound service during off peak hours decided to do this instead, skipping not just the Jubilee Line stations, but three Metropolitan Line stations too, creating a service that ran from Zone 2 (Finchley Road) to Zone 5 (Harrow-on-the-Hill) without stopping (except for a red signal). Funnily enough, I actually wanted to go Northwick Park, and I boarded the train at Finchley Road not knowing it was skipping Wembley Park, because why would I think to check. I'm glad I did though, just to capture this weirdly rare service, and it's quite easy just to reverse for one stop at HOTH. Thank you for watching and make sure to subscribe if you want to see more London Underground videos.