The answer to this question is obvious without even viewing this - valid, relevant data remains VALID, RELEVANT DATA - but it's still interesting info:
[video=youtube;ohDu7sKrqlw]https://www.youtube.com/watch?v=ohDu7sKrqlw[/video]
1968 test:
[video=youtube;0f1XFZZ-g_U]https://www.youtube.com/watch?v=0f1XFZZ-g_U[/video]
1969 test (fail):
[video=youtube;Gf1O6AkhBM0]https://www.youtube.com/watch?v=Gf1O6AkhBM0[/video]