ISDB-Tb is a Japanese standard used in Brazil. The rumours have it that the Japanese have bribed the Minister or someone in the Department of Communications to rather move to their standard at this late stage. More rumours have it that Hitachi will supply a lot of the ISDB-Tb broadcasting equipment. No need to remind everyone that the ANC has a share in Hitachi. Everyone involved in the digital TV migration process (STB manufacturers or broadcasters like eTV) is absolutely dumbstruck by the sudden change of mind the DoC had, so late in the process (if it was a soccer match, we'd be in the last minute of time added on now). There must be something sinister behind it, it's the only explanation. It's just that the proof hasn't come out yet. This whole thing is just a digital version of the arms deal of a couple of years back.