Al said the moon would be full on February 14, 1985. In actuality, the true moon phase for that date was waning.
In A Portrait for Troian - February 7, 1971 (1989), Al believed the ghost was real and Sam said he didn't believe in ghosts and thought it was all bunk. Now, for whatever reason, Sam believes in psychics and it's Al who thinks psychics are "one step above Ouiji boards". What changed their minds?
Ghosts and psychics are not the same, and a person can believe in one but not the other; they can also change their opinion as time goes on.
Ghosts and psychics are not the same, and a person can believe in one but not the other; they can also change their opinion as time goes on.
In the window during the musical montage, you can clearly see Sam's reflection, not Dylan's. However this may simply be a stylistic choice, as it is shown earlier that Tamlyn can see Sam's true reflection in the mirror.
When Sam is lying in bed on the morning of Valentines Day, you can see Al's cigar smoke in front of him, before the noise of the Imaging Chamber door to signify Al has arrived.