Although nearly the entire DuMont film archive was destroyed, several surviving DuMont shows have been released on DVD. Much of what survived was either never properly copyrighted (live telecasts, because they were not set on a fixed medium, were not eligible for copyright at the time, although films of those telecasts could if they contained a proper copyright notice) or lapsed into the public domain in the late 1970s when DuMont's successor-company Metromedia declined to renew the copyrights. A large number of episodes of "Life Is Worth Living" have been saved, and they are now aired weekly on Catholic-oriented cable network, the Eternal Word Television Network, which also makes a collection of them available on DVD (in the biographical information about Fulton J. Sheen added to the end of many episodes, a still image of Bishop Sheen looking into a DuMont Television camera can be seen). Several companies that distribute DVDs over the Internet have released a small number of episodes of "Cavalcade of Stars" and "The Morey Amsterdam Show". Two more DuMont programs, "Captain Video and His Video Rangers" and "Rocky King, Inside Detective", have had a small number of surviving episodes released commercially by at least one major distributor of public domain programming. Because so few episodes remain of most DuMont series, they are seldom rerun, even though there is no licensing cost to do so.