Using phone for streaming

I’ve inherited a smart TV and this got me thinking, I could connect the tv to my iPhone using the phone as a hotspot and use the 4G to watch programs through Iplayer and itv x etc. this is appealing as currently my digital Ariel requires replacing.
Unfortunately, I can do this whilst my phone is connected to a Wi-Fi system, but as soon as I turn off Wi-Fi on my phone and switch back to 4G the phone disconnects from the tv. My mobile contract is with Tesco and they claim on their website what I am trying to do is possible and within the scope of their service.
Anyone done this? 
Thanks

I think you need your WiFi switched on on your phone so it can connect to your TV. I’ve tested that by connecting my iPad to my phone hotspot and as soon as I  turn off WiFi on my phone the iPad disconnects.

I assume your are trying it out at home while the phone is connected to your house WiFi so you will have disconnect it from that to force it on to 4G 

Hope this helps

Mike

It may well be that you need the wifi switched on to reach the TV, as Mike says. Alternatively, rather than creating a mobile hotspot, you may find your TV will only allow a Bluetooth connection to your phone. I would check the TV instructions and see what they say.

I’m sitting in my barge in Belgium watching my dumb TV connected by HDMI cable to my laptop, which is running on Wi-Fi from my U.K. iphone.

The TV is actually a Smart one but we gave up trying to do the same as you are trying. 

So to put it another way, iPhone tethered to computer by Wi-Fi, then hdmi cable to TV. The Netflix, Prime etc. are selected on the computer so we are just using the TV as a monitor. We use satellite to watch live tv but that can of course also work through the pc if we can’t see a statellite.

I’m told it works better because most smart tv processors are dog doings, and it works for us.

Thinking about it further, Toffee, I think you will need to connect your TV to wifi for it to pick up the wifi signal emitted by your phone's hotspot which it will have converted from 4G. 

If your TV is not wifi enabled, the connection you describe above is probably made by Bluetooth rather than wifi. If this is the case, your choices will be Bluetooth or a cable as Bargee describes.

Thanks for the suggestions, I will give these options a try.

Let us know what happens.

Rocky, the confusion on my behalf is that I’m trying this at home and my thoughts were by turning off Wi-Fi on the phone I was disabling the connection between my phone and the router in the house. I understand now that I need to turn off the router and leave Wi-Fi enabled on my phone. I’ll give it a go. Regarding data I’m thinking 100gb will give us more than enough viewing time. Ou  if needs will be around 5 hrs a month maximum.
I’ll report back when I have tried it again

This any help?
https://youtu.be/ltgk8FiVHoE?feature=shared
Rich..

Strange, my Samsung Android, A54 5G tells me to switch off Wi-fi " To use Mobile Hotspot, Wi-Fi needs to be turned off" is the message displayed on phone. It always works for me.

There’s more than one way of connecting a hotspot on a phone to another device, but if you don’t want to use a physical cable (and why would you) then the phone’s WiFi must be on, as there’s no other way for devices to connect to it. However it’s not acting as a WiFi client in this scenario, but as a bridge between the cellphone network and a temporary WiFi network which the phone creates. It’s trivial on an iPhone. Just turn on the hotspot and it does the rest.

It seems to be wasting your time with an unnecessary prompt, when it could just disconnect from the WiFi network all by itself. The WiFi ends up on, just in a different mode, or else it would be impossible for anything to connect to it wirelessly.

OK, this is my experiment with my iPhone and connecting my iPad via the phone's hotspot.

1st pic is the phone with wifi off and using 4G. You can see what happened so I turned wifi on.
2nd pic is the pad finding the phone's hotspot with wifi turned on on both devices.
3rd pic is the phone (still using 4G and wifi on) showing the link connection to the pad.

I’ve tried the suggestions, and the solution to prove it works was to power off the home Wi-Fi.
Turn on hotspot- leave Wi-Fi on on the phone - enter the phones hotspot password into the TV - Watch the TV.

The connection buffered a fair bit initially, but settled down after a few minutes, the problem Chanel was itv x which was clunky, but I find the same when connected to the home Wi-Fi.

So, thanks for all the help.