4 0 , ▁in ▁V ancouver . ▁ ▁He ▁was ▁later ▁involved ▁in ▁the ▁creation ▁of ▁Ice berg ▁Radio , ▁the ▁first ▁major ▁Canadian ▁Internet ▁radio ▁project , ▁and ▁returned ▁to ▁the ▁terrest rial ▁radio ▁air w aves ▁as ▁host ▁of ▁a ▁free form ▁rock ▁show ▁on ▁O sh awa , ▁Ontario ' s ▁The ▁Rock ▁ 9 4 . 9 ▁in ▁the ▁early ▁ 2 0 0 0 s . ▁ ▁The ▁Mars den ▁Theatre ▁The ▁David ▁Mars den ▁Radio ▁Program , ▁also ▁known ▁as ▁The ▁Mars den ▁Theatre , ▁a ired ▁twice ▁a ▁week ▁on ▁O sh awa , ▁Ontario ▁radio ▁station ▁C K GE - FM ▁( a . k . a . ▁The ▁Rock ) ▁from ▁June ▁ 2 0 0 3 ▁to ▁December ▁ 2 0 1 4 . ▁▁ ▁Origin ally , ▁Mars den ' s ▁show ▁was ▁on ▁Th urs day ▁and ▁Friday ▁night s , ▁but ▁it ▁was ▁moved ▁to ▁Saturday ▁and ▁Sunday ▁night s ▁in ▁March ▁ 2 0 1 0 . ▁During ▁his ▁time ▁on ▁C K GE , ▁Mars den ▁was ▁the ▁only ▁free ▁form ▁DJ ▁on ▁a ▁commercial ▁radio ▁station ▁in ▁North ▁America . ▁ ▁Though ▁it ▁was ▁announced ▁the ▁show ▁would ▁end ▁on ▁December ▁ 1 4 , ▁ 2 0 1 4 , ▁Mars den ' s ▁final ▁broadcast ▁a ired ▁on ▁December ▁ 7 . ▁ ▁There ▁was ▁on - air ▁promotion ▁of ▁a ▁final ▁set ▁of ▁shows ▁the ▁following ▁week ▁( Dec ember ▁ 1 3 –