"Do you ever do something" vs. "Have you ever done something" [duplicate]
Solution 1:
The first uses the present tense, and is thus a question about a general state of affairs. It asks if you ever watch them now or in the past or, by implication, are likely to do so in the future.
The second uses the present perfect construction, and asks only if there has been any occasion in the time up until now when you have watched them.