IPTV recording

Hey guys, where I live we have an IPTV system that encodes various channels and makes them available over our internal network via .STRM files. Right now I’m using simple IPTV client to access all the streams however I would like to be able to record the streams to the hard drive that I have plugged into my raspberry pi. I can’t seem to make this work with the client I have, has anyone had any success with doing something like this with the simple or even a different client that would work?