CREATE TABLE table_22826 ("DMA" FLOAT, "Market" TEXT, "Station" TEXT, "Frequency" TEXT, "Branding" TEXT, "Format" TEXT)

What is the dma when the format is rhythmic contemporary?
SELECT MIN("DMA") FROM table_22826 WHERE "Format" = 'Rhythmic Contemporary'
SELECT MIN("DMA") FROM "table_22826" WHERE "Format" = 'Rhythmic Contemporary'