P304 4-Tel 304 Sat 10 Dec C4 22:23:00   The          Mondays - Thursdays, 7.50-8.00pm The Slot now fills that slot ten minutes long and just before the news. It returns, after the run of Belfast Lessons, to offer viewers the chance to have their say on any matter of the day. There is a documentary about Belfast Lessons on Friday 16 December at 17.00 C4 films today and tomorrow 370 Subtitled programme details 375 Previews C4 Films C4 Tomorrow Back-up