Japanese TV

Hello,

I'm going to be living in Japan early next year, and am staying in a sharehouse-type accomodation that has a TV on the first floor, but, as far as I know, the individual rooms do not have TVs.

In the US, I use isakuratv (which now offers an upgrade called i Kiku TV). However, on their website, it mentions that the streaming service is not offered in Japan. I guess for obvious reasons.

Unless my room has some sort of outlet to receive cable or digital channels, I am unsure about another way to watch live TV. If I were to have my own smart TV in the room connected to wifi, is there some method to stream that way? I have heard that there is a small card that you insert into the back of the TV (B-CAS card, I think), but is a specific cable or outlet necessary?
If possible, I would like to receive live tv, like TV Tokyo, TV Asahi, and so on, with commercials and all. I do know that I can get the regular apps like TVer etc.

Any suggestions and/or advice will be greatly appreciated!

by katineko