ABC's Dancing With The Stars danced away predictably with ratings honors Monday night, scoring a 12.7 rating and a 20 share in the 8:00 p.m. hour, rising to a 13.2/20 at 9:00 p.m. An appearance by Britney Spears on CBS's How I Met Your Mother gave that show a ratings boost as it posted a second-place 6.3/10 at 8:30 p.m. NBC continued to struggle with a minuscule 2.7/4 for its My Dad Is Better Than Your Dad in the same half hour. CBS took over the lead at 10:00 p.m. with the first new epis ode of CSI: Miami since the writers' strike posting a 10.2/16.