Disney and AT&T today announced a multi-year extension to their already existing relationship, which brings approximately 70 channels to AT&T's U-Verse cable network. The new "long-term distribution agreement" also adds a handful of new content, including ESPN 3D and a new ABC/Univision collaborative channel aimed at English-dominant and bilingual Hispanics. That adds to the already robust lineup, which features biggies like ESPN and ABC. It's unclear what money exchanged hands in the deal or how long it'll last -- no specifics are given for either -- but it's