It may have been a case of nowhere to go but up, but the Nickelodeon kids channel, which had seen the bottom drop out of its squarepants since the fourth quarter of 2011, reported on Tuesday that its ratings have risen for the 15th week in a row. Its audience numbers for last week, it said, rose 4 percent among kids 2-11 and 7 percent among total viewers. The figures represent a significant turnaround for the channel which saw its total audience fall nearly 20 percent to 1.4 million viewers in November 2011. It is now averaging 1.6 million viewers, but is Nevertheless off its pre-2011 average of 1.7 million. The channel has been a persistent drag on Viacom's profits of late with some analysts suggesting that the problem may be related to the easy availability of superior kids content available via Netflix.