The first one is the obvious flaming Olympic rings, which reminded me very much of a space shuttle or a rocket or something:
The above space shuttle pic is the only one I could find that even remotely resembles what I "see" and I'm not too sure that even if I do "see" it, it resembles "ET." It's just weak.
The other thing was the actual "ET" look-alike scene minus the moon behind it - the mothman type creature riding and then flying a bicycle:
And he's not exactly ET anyway...
Although there are analogies to be made, they are weak. I don't think there really was an "ET" scene.