COUNT the roadblocks on the circuitous route to direct-to-home (dth) television: political disjunction, conflicting signals, crossed wires, bureaucratic dilly-dallying, corporate sabre-rattling, behind-the-scenes manipulation, warped thinking. Doesn't make for a pretty picture. Nearly three years after the advanced wireless delivery system was first heard of in this country, impediments have only multiplied. So, despite information and broadcasting minister Pramod Mahajan's recent indications that the ban on transmission in the 10,700 to 12,750 MHz Ku-band frequency spectrum could soon be lifted, confusion continues to reign.