Until 1922, the reigning champion had to play only in the final, against whomever had won through to challenge him/her. As with the other three "Major or Grand Slam" events, Wimbledon was contested by top-ranked amateur players; professional players were prohibited from participating. This changed with the advent of the open era in 1968. No British man won the singles event at Wimbledon between Fred Perry in 1936 and Andy Murray in 2013, while no British woman has won since Virginia Wade in 1977, although Annabel Croft and Laura Robson won the Girls' Championship in 1984 and 2008 respectively. The Championship was first televised in 1937.