I also noticed that Univision 26 is in HD. I think they switched to HD on the 16th at about 11 PM or so. At least that's when I noticed that they were HD. I was channel surfing at about that time, and I noticed that they were showing the Novela Un Gancho al Corazon
It also seems that they switched to Digital Closed Captioning, but when you turn them on It say the languae is English , but the Captions are in Spanish. Also when I push the SAP button it says that the audio is in English, but it's actually in Spanish. I think they forgot to set the language and CC information.
As for Telefutura in HD, maybe Entravision could only afford to updated KINT to HD right now, or they may have had shipping problems with the part that allows KTFN to go HD.