To open the photo wall on your TV you can either:
Connect your laptop with an HDMI cable directly to the TV.
Most smart TVs nowadays have remote cast capabilities (Chromecast). Open the photo wall link in the Chrome browser, click the 3 dots on the top corner, select "Cast" and then choose your TV. If you have an Apple TV and a Macbook, just use the Airplay features. Make sure both your computer and TV are on the same Wifi network.
Depending on your TV, you can open the built-in browser on it and type the link in the address bar.