that make it well worth watching 
(ROOT (SBAR (WHNP (DT that)) (S (VP (VB make) (S (NP (PRP it)) (ADJP (RB well) (JJ worth) (S (X (VBG watching)))))))))
(ROOT (SBAR (WHNP (DT )) (S (VP (VB ) (S (NP (PRP )) (ADJP (RB ) (JJ ) (S (X (VBG )))))))))