[svn r55] Fixes on the TVChain manipulation, error when trying to get the last program chain.
1 Alexsandro Jose Virginio dos Santos <alexsandro.santos@indt.org.br>
2 Hallyson Luiz de Morais Melo <hallyson.melo@indt.org.br>
3 Leonardo Sobral Cunha <leonardo.cunha@indt.org.br>
4 Rosfran Lins Borges <rosfran.borges@indt.org.br>