ABC's telecast of the Academy Awards helped propel the network to first place in the Nielsen ratings last week, breaking NBC's string of 23 consecutive triumphs. NBC still placed six shows in the Top 10 and finished second overall, ahead of CBS. ABC also got strong performances from the Barbara Walters special that aired in conjunction with the Academy Awards and from its new series "Equal Justice," which won its time period on Wednesday. NBC's new comedy "Carol & Company," starring Carol Burnett, did even better in its first time out on Saturday, placing ninth among the week's 84 prime-time programs. The full list of ratings is on F9.