Eddystone Dealers sign with TV reference?

A recent E-bay offer of a dealer’s sign advertising Eddystone Shortwave Sets and Television Apparatus, raised the old question of the televisions that Eddystone were supposed to have made in the 1950’s. Despite requests in the Eddystone User Group newsletter over the years nothing of substance was ever discovered about these sets which were supposed to be consoles. It was my impression from speaking to Bill Cooke in the 1980s that these were prototypes made and used by the directors and never put on the market. This is somewhat contradicted by the dealer’s sign but there is no record of any Traders Information on the set as you would expect from a commercial product. I can also find no reference to a television set in the BP register (register of all top level drawings  or “ blueprints”). There was a suggestion that they were projection type sets, as an ex Merchant Navy Chief Steward told Ted Moore that he recalls seeing an Eddystone projection console on a P&O ship that was very difficult to install and set up but again no firm evidence. I also cannot see any reference to televisions in Bill’s autobiography “The Cooke Report” which can be downloaded from this site. A real mystery, will we ever know the facts?