Last time was 23 July 2009: "Dream Theater enters US album charts at #6".
I'm surprised you didn't comment on what seemed to me to be the most striking feature in all clips: the bass-playing, which is nothing short of exceptional. Far from being just the equivalent of a musical clock marking the tempo, the lines are creative throughout and the sound of it is prominent and beguiling and lush - it grabbed my attention right on, mainly in first clip and the last one. The last one has the bass-player getting his lines beautifully across as the catchy guitar riffs starts to unfold - the melodic and creative lines prevent the song from sounding flat. Yes, the guitar work is impressive, but it's cleverly layered by the drums and, mainly, the bass.
I liked the first song better - it's humorous and experimental and yet features enough guitar's and vocal harmonies' hooks which are really enjoyable. And the bass-playing, again, is top-notch.
I don't know who the bass-player is, I don't even know if it's the same in all the songs, but the bass work is for sure one of the highlights in at least three of the songs.
I'm affraid if it weren't for the top-notch bass-playing, the songs could sound a bit flat - it's not the case!
Thanks for the suggestion, the links and the explanations. Don't be affraid of creating threads - it's not a sin or whatever. Trolls make us feel as if it were a nuissance to create threads. The problem is not creating too many threads, though - the problem is creating too many threads devoid of purpose or content. Which is not the case here.