Display media from HTC One on a computer display

The title says it all. I am wondering if I can display slideshows among other things on a computer display. I know that it has to be a DLNA compatible device, which I believe most of computer displays are not, and I also know there's this companion HTC Media Link HD device (which is a wi-fi dongle kind of thing). I have a Mac OS X 10.8.2 Macbook Air, and an old Linux laptop, and some time to kill on a cold November weekend, so what I am asking really is whether there is a way to turn my Macbook or Linux laptop into a DLNA compatible device so that I could play slideshows on 24" display without investing any extra money.