On which network did 'RuPaul's Drag Race' originally air?

In what year did 'Archer' premiere? Who created 'Archer'? On which network did 'Shark Tank' originally air? In what year did 'Shark Tank' premiere? In what year did 'RuPaul's Drag Race' premiere? In what year did 'The Walking Dead' premiere? Who created 'The Walking Dead'? On which network did 'Boardwalk Empire' originally air?