Televeision Match Officials will be used in all Aviva Premiership matches this season Last season the video referee was in operation only at the three ­televised matches, thereby undermining the integrity and universality of the ­system. The 12 Premiership clubs have invested close to £500,000 to ensure that there are eight cameras at each ground, the minimum required to facilitate the TMO. The coaches and captains of all 12 clubs will have their say on such matters today at the official launch of the 2013-14 Aviva Premiership at Twickenham. The new scrummage laws, with a changed sequence of crouch-bind-set and an instruction to referees to police the crooked feed, are sure to generate much debate as the clubs gear up for the season that begins on the weekend of Sept 6-8, with the London double header at Twickenham as its centrepiece. There is one other significant change: a new broadcaster. Cameras in dressing rooms, in-match conversations with directors of rugby and half-time player interviews will be an integral part of the new-look approach taken by BT Sport as it begins its £152 million four-year association with English rugby. The broadcaster has taken over from Sky Sports and, latterly ESPN, and has pledged to be innovative and inclusive. It, too, will televise half of the weekly programme of matches with a regular league game on Friday night, as well as mid-afternoon Satur­day and Sunday games. Lawrence Dallaglio will be the principal rugby expert with Martin Bayfield leading the way at eliciting comments from players and coaches at matches.