Antenna cable necessary?

Hi have ordered a television and am now wondering if you need an antenna cable to watch TV? At the moment I only need Netflix, so you can also use Wi-Fi as normal? And if I want Blue TV now, can I use Wi-Fi?

Yes, Wi-Fi is enough and I would recommend you anyway if you want to watch TV via IPTV

Yes, Netflix can be received via Wi-Fi.

If you just want to watch Netflix, you don't need an antenna cable, but a Smart TV

You don't need an antenna cable for Netflix, but a double-coiled Wi-Fi cable is mandatory.

And would Blue TV also work or do you need the cable for that?

https://www.swisscom.ch/de/privatkunden/abos-tarife/inone-home/swisscom-blue-tv/geraete.html