TPEN Investigation (United States)

Ultra Channel

1979-1985

Wow! Network

1985-1996

TPEN Civilstation Network

1996-1998

History & Mystery Channel

1996-1998

TPEN Civilstation Channel

1998-2001

In 1998,the two channels were merged the one big channel

TPEN Times Channel

2001-2007

TPEN Civilstation Channel was relaunched TPEN Times Channel

TPEN Investigation

2007-2010

2010-2012

2012-present