The only winner which has yet to get the licence is RS Plc, whose subsidiary has just won a court case with the NBTC involving the rights to broadcast the 2014 Fifa World Cup Brazil.
The Central Administrative Court ruled on Monday the NBTC must exclude the 2014 Fifa World Cup final match from its must-have sports list, effective retroactively from the date the list was announced.
RS's subsidiary holds the right to the matches.
The NBTC said it had to review RS's schedule again after the court ruling.
Once the company sends the revised schedule, the NBTC would consider and grant it the licence.
"From April 1-24, we may not notice any change on our TVs as it is the technical trial run. But after April 25, , the NBTC will know which operator broadcasts on which channel,"
The board also allowed the Bangkok Broadcasting & TV Co Ltd, the operator of Channel 7, to simulcast content on both systems as it uses the same entity to apply for the digital licence.
MCOT Plc, Channel 9 operator, and BEC World's Channel 3 have yet to tell the NBTC whether they want to simulcast and Channel 3 uses a different entity to apply for the digital licence.