Get yourself a Google Chromecast device. It plugs into one of the HDMI ports in the back of your telly and connects wirelesly to your broadband router. You can then 'cast' the screen from your ipad (or other tablet) or phone onto your TV screen.
https://www.currys.co.uk/gbuk/tv-and-home-entertainment/digital-and-smart-tv/set-top-boxes/google-chromecast-third-generation-charcoal-10186048-pdt.html