OWN has acquired the cable rights to talkshows “Rachael Ray” and “The Nate Berkus Show.”Beginning Monday, two episodes of each show will air back-to-back weekdays with “Rachael Ray” at 9 a.m. and “Nate Berkus” at 11 a.m. The Discovery-owned cabler will air episodes of “Rachael Ray” from its first five seasons and from seasons one and two of “Nate Berkus.” OWN formerly had the Rosie O’Donnell talkshow on the air, but that aired in the evening. “Rachael Ray,” now in its seventh season, is distributed and produced by CBS Television Distribution in association with Harpo Studios, Scripps Networks and Watch Entertainment. “Nate Berkus” is distributed by Winfrey’s Harpo Studios. Berkus was a regular contributor to “Oprah” when the iconic talkshow was on the air.