We’ll be able to keep up with the drama in “Nashville” for at least the rest of the season. ABC announced Monday night that it was picking up the freshman drama for a full season. “Nashville” is the No. 1 show on Wednesday at 10 p.m., thanks mostly to DVR traffic. The soap stars Connie Britton and Hayden Panettiere. In addition to “Nashville,” ABC has also ordered full seasons of “The Neighbors” and sophomore drama “Scandal.”