Tuesday, 8pm, ABC1 This is the third episode of local production Croc College. Crocodiles may be one of the world’s most dangerous predators, and they do indeed live here. But how much can a koala bear? As a reviewer I feel I have been crocked half to death, and I imagine there are more than a few viewers who feel the same way. The only thing that makes this series marginally different from the hordes of others on the subject is that in Croc College, ordinary Australian men and women learn how to be croc wranglers, presumably because there are so many job vacancies in pay-TV production houses.