hey guys,,
i need your advice how could i possibly make an addressable box using pic..
its expected number of devices is 100thousand

my first plan is to transmit rf signal
like:
transmit ----> 1 ON
100000 ON
999 OFF

those devices that recives that code will be turned off or on based on the command sent.

just give me idea if its possible using pic.. and how could i merge the signal from PIC to cable tv signal .. thanks