A different single play fills BBC1's Wednesday-night slot each week from 1964 to 1970, most written specially for television, many by newcomers. A good share are hard-edged plays about the Britain of the day, on subjects television had largely avoided, from homelessness to backstreet abortion; others are fantasies, satires and adaptations. Writers include Dennis Potter, David Mercer and Nell Dunn, and Ken Loach directs ten.