“Defying Gravity” (9 p.m., ABC): Moon missions are so 1969. In the sci-fi thriller

“Defying Gravity” (9 p.m., ABC): Moon missions are so 1969. In the sci-fi thriller “Defying Gravity,” astronauts embark on a voyage to Venus that will take six years. Wanna bet the series doesn’t last nearly that long?

“Entourage” (10:30 p.m., HBO): Clear the casting couch. On “Entourage,” Drama begins auditioning women to play his love interest in his TV series. Something tells us acting ability won’t be the No. 1 job requirement.