Probably on the site
It has returned to ABC on Saturdays at 10 PM, starting May 31, 2009.
It's not real as far as the characters being real, but on iCarly.com does have web shows exclusive to the site and unseen in iCarly episodes.
The Unseen One.
Unseen Hollywood - 1998 Unseen Hollywood 1-1 was released on: USA: 1998
"Unseen" can be an adjective or a past participle verb, depending on how it is used in a sentence.
Unseen - website - was created in 2008.
The Unseen - novel - was created in 1990.
An Unseen Enemy was created in 1912.
Conversations with the Unseen was created in 2003.
The Unseen Bean was created in 2007.
The Unseen - album - was created in 1999.
Unseen Academicals was created in 2009.