You can always count on The Simpsons. The first four days of the 13-day “The Simpsons 600 Marathon” helped FXX reach the No. 8 spot among all basic cable networks in adults 18-49 and No. 5 among adults 18-34 in total-day viewing, according to the network and Nielsen stats. In primetime, FXX advanced to No. 10 among adults 18-49 and No. 5 among Adults 18-34 over the Thanksgiving holiday.

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Over the first four days of the marathon, which began at noon on Thanksgiving day, FXX’s total-day average ratings increased by 205% in adults 18-49 (326,000 vs. 107,000) and up 265% in adults 18-34 (208,000 vs. 57,000). FXX’s primetime was up 110% in adults 18-49 (414,000 vs. %197,000) and up 153% in adults 18-34 (278,000 vs. 110,000).

The 27-season, 600-episode, 300-hour The Simpsons marathon wraps att noon Wednesday, December 7.