 
 <translate> The first season of Supernatural, an American fantasy horror television series created by Eric Kripke, premiered on September 13, 2005, and concluded on May 4, 2006 after 22 episodes. It focuses on brothers Sam and Dean Winchester as they track down their father, John, who is on the trail of the demon who killed their mother and Sam's girlfriend. During their travels, they use their father's journal to help them carry on the family business -- saving people and hunting supernatural creatures. Jared Padalecki and Jensen Ackles star as Sam and Dean, with Jeffrey Dean Morgan recurring as their father, John, and Nicki Aycox as the demonic Meg Masters. This is the only season to air on The WB Television Network, with all subsequent seasons airing on The CW Television Network, a joint venture of The WB and UPN.

Answer this question based on the passage: when was the first episode of supernatural aired? OK. Let's think. My stream of consciousness: <ibo> Oge mbụ nke Supernatural, usoro ihe nkiri telivishọn American fantasy dị egwu nke Eric Kripke mepụtara, bidoro na Septemba 13, 2005, wee mechie na Mee 4, 2006 mgbe ihe omume 22 gasịrị. Ọ na-elekwasị anya na ụmụnne Sam na Dean Winchester ka ha na-achọpụta nna ha, John, onye na-esochi mmụọ ọjọọ nke gburu nne ha na enyi nwanyị Sam. N'oge ha na-eme njem, ha na-eji akwụkwọ nna ha ede ihe iji nyere ha aka ịrụ ọrụ ezinụlọ ha - ịzọpụta ndị mmadụ na ịchụso ihe ndị karịrị ike mmadụ. Jared Padalecki na Jensen Ackles na-eme ihe nkiri dị ka Sam na Dean, na Jeffrey Dean Morgan na-emeghachi dị ka nna ha, John, na Nicki Aycox dị ka ndị mmụọ ọjọọ Meg Masters. Nke a bụ naanị oge a ga-agbasa na The WB Television Network, na oge niile na-esote na-agbasa na The CW Television Network, otu ụlọ ọrụ nke The WB na UPN.  Zaa ajụjụ a dabere n'akụkụ Akwụkwọ Nsọ a: olee mgbe a na-agbasa ihe nkiri mbụ nke ihe karịrị ike mmadụ? Ọ dị mma. Ka anyị chee echiche. Ihe m na-echeta: 