>Are there any programs, other than perhaps some behind the scenes plumbing that you
>can, or even want to run on all those different systems
I run a programme to fetch BBC radio programmes on my router, linux desktop, file server, and have run it on a friends telly.
On a research ship with Decca Radars I developed a perl script to parse out the test match scores from a BBC web page and merge them with NMEA data so they would scroll across the bottom of the radar. Developed it on a linux based workstation, and finally installed it on the embedded dish steering box for the satellite internet link. Probably still there, though I suppose that changes to the web page have broken it now.