I started watching in 2006 I think. My housemate at uni had all the seasons that were released on dvd and we watched it while eating dinner, usually a few episodes a night. Didn't take us long to work through the first 6/7 seasons.
And then when we caught up with the show we watched them weekly.
Because we watched the first half of the series so close together it's a bit of a blur (
) so I can't really pinpoint what really grabbed me, but it's a good show and yeah it has it's problems but you know what you're getting with
Smallville. It's reliable and has pretty people it's been pretty good with DC mythology, especially in the last couple of years.