The Sky At Night - Extraterrestrial Life - Is Anybody Out There?

I was watching an episode of The Sky at Night yesterday morning, on the search for extraterrestrial life using SETI and SETI@Home and spotted several Linux desktops/laptops. It's an old episode from around a year ago, I reckon, but interesting none-the-less. I also found the episode on YouTube in two parts. It's hard to see what the PC's running in the first clip, skip to 5:25 in the second video for some good views of Linux PCs, running quite old versions of KDE. Reminds me of when I used to use KDE 3, good times. This was before I started to have instability problems in Kubuntu which made me switch to Gnome on Ubuntu. See screenshots.