First of all I love your username, very cool I'm not sure what you mean by service port? Do you mean can it accept firmware upgdates like the Olevia? Not that I'm aware of. I've never heard of that but I'm sure the experts at AVSForum.com would know. What's your primary use for an LCD HDTV, a monitor or HDTV? DVI is best for monitor and HDMI is best for an HDTV. Correct but there are HDMI to DVI cables available for under $10. It really depends on how you plan on using this, as a monitor or HDTV? If you want the best I would definitely recommend the Olevia 537H which is an incredible monitor and HDTV. I would classify Westinghouse as the best with Sceptre, Olevia and Vizio as 2nd. That's ok, I haven't slept in 36 hours and I'm running on fumes myself. RossMAN @ 415-287-3325