Complex sentence: Unlike the Professional Players Tournament, The BBC televised the championship and was held in the Hexagon Theatre in Reading which had previously hosted the World Team Classic since 1981 which was also televised by the BBC.
Split into simpler sentences: Unlike the Professional Players Tournament, The BBC televised the championship and was held in the Hexagon Theatre in Reading. The venue had previously hosted the World Team Classic since 1981, which was also televised by the BBC.