Unable to cast channel 4 to Bravia TV

[Marella]

Hi I am new to the community .

I am recently unable to cast channel 4 player to my Bravia Smart TV 2019 model .

i have tried all the usual troubleshooting .

message says it is not available , but I used to be able to do this .

any help please and thank you .

its not my iPhone or the Wi-Fi connection .

[LightFoot]

Hi @Marella   We need the full model number of your TV, it will start with KD or XR. Then we can check that it supports Airplay2, required to cast video.

[royabrown2]

@Marella 

Hasn't it got All4 (now called Channel 4)  as one of the apps on this TV?