18:00Six O'Clock News31/05/2017 Corbyn joins TV debateBBC Radio 4 Duration: 30 minutes Wed 31st May 2017, 18:00 on BBC Radio 4 FMAvailable for over a yearListen nowThe Labour leader changes mind over debate; Theresa May defends not appearing.GenresNewsFormatsBulletinsBrandSix O'Clock News Source: BBC Online