CMT recorded the network’s highest-rated original series telecasts ever on Saturday with the premieres of Bayou Billionaires and My Big Redneck Vacation. Bayou scored a 0.72 rating in the adults 18-49 demographic good for 724,000 viewers, and Redneck drew a 0.7 in the demo and 707,000. That bodes well for the network, which is ramping up its original productions with more series in development than ever before; CMT also recently greenlighted a pair of docu-reality series — one starring Jennie Garth and the other Melissa Rycroft. Other originals bowing this month include Season 3 of Sweet Home Alabama and the new series Swanderosa.