In 1st image you can see here Laptop, In laptop Web Camera is connected to show TV Content .

Connect your TV & Laptop in single Network . You can use your WIFI Network or Use Mobile Hot-spot.

Fill in some text

Open Google Chrome Browser in Laptop

Click - Cast Tab option in Google Chrome

Click in Google Chrome Sources - Cast Desktop

After selecting Sources- Mirroring Started .

Now, You can see Laptop Content is visible in TV . If you play movie, presentation etc real time you can see in TV also.

If i change wallpaper in laptop , its also change in TV in same time.

Thanks for Watching