How to fix the picture on my tv , i can only hear the sound

[ruqayyahbeyah3]

I’m trying to watch movies on my tv through my iPhone but I can only hear the sound. I can’t see the picture on the tv

 

[ElectrO_90]

probably dont have the decode software on tv for it to work.
your entire question gives almost zero information

 

[ElectrO_90]

probably dont have the decode software on tv for it to work.
your entire question gives almost zero information