Capitol would have been my second guess here, especially considering these were on US television.
You may have picked up on this already, but the first video actually contains three separate cues: One running from the start to 1:16, one from 1:31 to to 2:58 and one from 2:58 to the end at 3:10. The third being an 'ending' variation of the second.
As you may be aware of, their catalogue is
quite massive. Considering the sound of the cues, I don't think you'll find these on the "D" reels, these are more suspenseful/dramatic in nature. I've never seen a cue titled "Morandic Mechanical", though there are quite a lot of cues with "Mechanical" in the title. Going by sound, I'd guess this was on one of the "L" or "M" reels, and the bass sound would place this in the middle or later part of the catalogue rather than the early mid-50's stuff.
I'll second what apmnut wrote above, the last cue sounds German to me too.