 Complete the following phrase:  In the 1985 final, also known as the black ball final, Dennis Taylor beat Steve Davis 1817 on the final ball of the final frame, in one of the most closely contested matches of all time. It finished at 00:19 and, with an audience of 18.5 million, it remains the most-watched programme in the history of BBC2, and holds the record for a post-midnight audience for any channel in the United Kingdom. Davis met sixteenth seed Joe Johnson in the 1986 final. Johnson led 1311 at the start of the evening session and won five of the first six frames to win 1812. Johnson had trailed 912 in his quarter-final against Terry Griffiths but won the last four frames to win 1312. Johnson and Davis met again in the 