ISDB-T does have benefits just like ISDN did for telecoms.It was developed in Japan.It basically involves that is the next stage of communication where you have radio,tv,internet and phone on one channel.The initial costs are very expensive but the consumer benefits in the long run.Those who have the money to go in of ISDN would and those who don't will stick to dvb-t.Eventually all roads are leading to integrated Services Digital Networks.You must know,HD was in existence about 15yrs ago in Japan.Its now we are accepting it and now enjoying its benefits.
The hue and cry here is due to the STBs already in the market and the investments the govt has already made.It would bring confusion if both services are run concurrently. So the govt has to make a decision first and fast on which way we need to go.
Attached see the distribution of DTT systems.
./bernard