IPSEC VPN + Broadcast - Is it possible?

Hi

I have the setup in the diagram. I am trying to use DLNA (broadcast) on the smart TV over the IPSEC VPN.
The VPN is working fine, ping ect… However I know broadcasts wont work between two networks. Is there a way I can forward the broadcasts in both directions?

I think I need to use IGMP-Proxy or PIM. I have had a try but am unsure of what to do.

Unfortunately I don’t have mikrotiks on both sides - otherwise it would have been too easy.

Any help? anyone else tried this?

Thanks
VPN-DLNA - sm.png