P317 4-Tel 317 Sat 25 May C4 03:44:13 Preview FLAVA 00.45-01.20 Tonight Flava does what other TV music shows have so far failed to do, and joyously celebrates the black music styles of the mid-1990s. BEAT SPECIALS 02.40-03.35 Tonight Distinctive Mancunian popsters Molly Halfhjad join sunny pop funsters Dodgy, in a show recorded last year at London's famed Astoria venue. Both with NICAM stereo Competition on page 325 Baadasss TV is on page 316 Next preview C4 Tomorrow Science Films