Free UK TV listings websites providing episode and original air date details

A popular free UK TV listings website that provides programme listings for Sky and other digital channels — often including episode titles, season/episode numbers and original/air dates — is:

• Radio Times: https://www.radiotimes.com/

Other free options to check:

• TV Guide (UK section): https://www.tvguide.co.uk/
• What's on TV: https://www.whatsontv.co.uk/
• EP Guides / TheTVDB (for episode-level metadata, originals/air dates): https://thetvdb.com/ and https://epguides.com/ (these focus on episode lists and original air dates rather than live listings)

None of these is perfect for every channel or complete filming details; for original broadcast/filming info of specific shows you may need the show's page on TheTVDB, IMDb, or the channel's official site.