そう方向 ほうこうCATV しいえうてぃうぶいだったら
sō hōkō shiieutiubuidattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 双方向CATV

1. If it were two-way CATV; If two-way CATV existed

Tara Conditional
Computing