Radio Rivendell was created in 2001.
Leaving Rivendell was created in 2005.
A Night in Rivendell was created in 2000-04.
At Dawn in Rivendell was created on 2003-03-11.
Rivendell Bicycle Works was created in 1994.
An Evening in Rivendell was created on 1997-09-30.
The name of the valley is Rivendell, or in Elvish, Imladris.
Radio Radio was created in 1977.
Radio Radio Radio was created on 1993-08-26.
Radio Fusion Radio was created in 1991.
That would be impossible as Rivendell only exists in Tolkien's books and the movies derived from them.
We Are the Radio was created in 2005.
Radio Stars was created in 1977.