Oblivion The Series - 2009 Accidents Never Happen 1-14 was released on:
USA: 8 June 2011
Oblivion The Series - 2009 was released on: USA: 16 September 2009 (video premiere)
There is no confirmed release date for a new installment in the "Oblivion" game series by Bethesda.
Oblivion The Series - 2009 What Love Is 1-11 was released on: USA: 16 April 2011
Oblivion The Series - 2009 Revenge 1-3 was released on: USA: 16 November 2009
Oblivion The Series - 2009 Punish or Be Damned The Oblivion Halloween Special - Part 1 1-7 was released on: USA: 25 December 2010
Oblivion The Series - 2009 I Heard a Rumor 1-10 was released on: USA: 16 March 2011
Oblivion The Series - 2009 The Phone Call 1-6 was released on: USA: 14 October 2010
Oblivion The Series - 2009 How Low Can a Punk Get 1-5 was released on: USA: 30 September 2010
Oblivion The Series - 2009 Madcap Laughs 1-12 was released on: USA: 16 May 2011
Yes, Oblivion is only part of the series The Elder Scrolls, there are three past Elder Scroll games, Oblivion is #4 in the series. Oblivion is also the newest in the series.
The full name is The Elder scrolls IV: Oblivion. People who are unfamiliar with the series might know that Oblivion is the fourth game in a series, but not know that the series is called 'The Elder Scrolls', and not Oblivion. Hence, 'Oblivion 4'.
Oblivion