After Re-watching "Time Keeps on slippin" i noticed one of the Professor's Doomsday Devices looks a fair bit like the Terran Cargo boxes in the PC game(s) "Freespace I + II" the only difference being the colour and that round thing on top of the doomsday device.
I know this seems pretty dumb, especially without screen grabs of them... But i will see what i can do about that.
But as i said, this may very well be co-incidental, but the resemblance is pretty close, which is why i thought it might be worth putting it up here...
Teral, You're a legend
Finally we have some pics to compare!
OK the in-game pic is focused on the cargo box.
The doomsday device in question is the bottom right one with the round thing on top. Thanks again Teral