Samsung was the most advertised brand on British TV in terms of airtime last month. The Korean electronics giant racked up 2,486 minutes of advertising -- over 41 hours -- across terrestrial and pay TV in March, a 238% increase compared to February. There were 3,525 spots for Samsung last month on British television. Last month, BT was the most advertised brand by airtime. The next most aired brand ads were for Nationwide (2,357 minutes; 4,150 spots) and BT (2295 minutes; 3,637 spots).