If you've not got wifi the only way you can acquire it via your phone is turn its 'hotspot' feature on. That effectively turns it into a router broadcasting a wifi signal.
You can't connect a 'non-smart' TV to the internet unless you first make it 'smart' by plugging a suitable device into an HDMI port. Such devices include a Now TV Smart Stick, a Google Chromecast and an Amazon Fire TV Stick.