It was immediately agreed that the 1941 season of Proms should be held at the Albert Hall. It was twice the size of the Queen's Hall, with poor acoustics, but a six-week series was judged a success, and the Albert Hall remained the home of the Proms. Wood, aged seventy-two, was persuaded to have an associate conductor to relieve him of some of the burden. Basil Cameron undertook the task and remained a Prom conductor until his retirement, aged eighty, in 1964. The BBC brought its symphony orchestra back to London and resumed its backing of the Proms in 1942; Boult joined Cameron as Wood's associate conductor during that season. In early 1943, Wood's health deteriorated, and two days after the start of that year's season, he collapsed and was ordered to have a month in bed. Despite wartime vicissitudes, the 1943 season sold nearly 250,000 tickets, with an average audience of about 4,000 – many more than could have fitted into the Queen's Hall.