Telemundo is a commercial broadcast network, like ABC and CW. It's possible that your local Telemundo broadcaster doesn't broadcast it in HD for some reason. Also note that the channels numbered in the 1000s are just duplicates of the ones numbered 1-999.
Do you happen to know the call letters of the Telemundo stations you do get? Alternatively, what is your ZIP code, so I can look it up?
ryanfreeman1976, thank you for reaching out. Was ThatDonGuy able to help out? If not, feel free to send me a PM with your first and last name so I can take a look at the lineup you're subscribed to.
Thatdonguy, those numbers are not duplicates in Central and Southern Indiana. The 1000 numbers are the only locations for HD channels for those who have Comcast in the Indianapolis area.