Enterprise, Broken Bow. I'd seen it when first aired and noticed a few things that I hadn't before:
1) It's pretty xenophobic and sexist. The former seems to be part of the Archer arc, to show how he gets over his bigotry to become a more open-minded character. All that is done with the subtlety of a sledgehammer and is pretty formulaic and forced.
The sexism, though, seems to exist just to offer a kind of unecessary frat boy mentality to the show. I'm rather appalled by Trip and Mayweather in the first half and Reed in the second, for instance, because they seem more like ogling knuckle-draggers. Sato is treated as something of a histrionic child, and haughty T'Pol is there mostly for the catsuit and to give Archer someone to beat on.
2) Scott Bakula rivals William Shatner for a halting, over-dramatic delivery.
3) Perhaps because of Abrams ST and Discovery, the tech doesn't seem so jarringly out of place as it did 15 years ago. I remember watching the show and thinking it looked more advanced than TOS. In a lot of ways, it still does, but that's less to do with the tech and more to do with the modern Trek aesthetic.
4) While the writing seems to recycle a lot of what we've experienced before in Trek from the 1980s on, it's a better pilot than, say, Encounter at Farpoint. Still, since H & I shows three or four Trek episodes in a row, each from a different series, the similarities to other post-TOS Treks is more obvious than not.
5) The Temporal Cold War plot is completely unnecessary for the goings on of the story. Nothing dependent on time travel couldn't have been accomplished just by having spies and such in the current time period.