This was a great episode but you can see many things now that got changed over the years. The clothing is a little more hipster in my opinion in this first season. And seeing Sheldon walk into a fertility clinic is pretty much as close as it gets for sex for him. At least we know off the bat that Sheldon has no issue in jerking the gherkin on occasion. Penny also comes off as a little dumb in this. It's good to see that they kicked off the dumb valley girl image overtime. Kudos to getting that dumb hat off Raj as well. Howard, great out the gate. Leonard has stupid hair as well. Just knit picking.
If you ever get to see the unaired pilot then don't worry. it's a virtual clone of this episode.