I could have been a doctor, but there were too many good shows on TV.

The line is a self-deprecating joke about squandered potential: the speaker claims a prestigious, demanding career was within reach, then undercuts it with the trivial excuse of watching television. The humor depends on the disproportion between “doctor” (discipline, sacrifice, social value) and “good shows on TV” (comfort, distraction, passive consumption). Read more broadly, it satirizes procrastination and the way entertainment can become an alibi for avoiding difficult commitments. It also pokes at the cultural tendency to narrate life outcomes as if they hinged on small, almost accidental choices—when in reality they reflect patterns of priorities and habit.