it had been only half-an-hour long or a tv special 
(ROOT (S (NP (PRP it)) (VP (VBD had) (VP (VBN been) (ADJP (ADJP (NP (RB only) (NN half) (HYPH -) (DT an) (HYPH -) (NN hour)) (JJ long)) (CC or) (NP (DT a) (NN tv) (NN special)))))))
(ROOT (S (NP (PRP )) (VP (VBD ) (VP (VBN ) (ADJP (ADJP (NP (RB ) (NN ) (HYPH ) (DT ) (HYPH ) (NN )) (JJ )) (CC ) (NP (DT ) (NN ) (NN )))))))