I'm the same way.

1 - Terrible. Good Lord, who thought making this was a good idea?

2 - Poor. Would not watch again

3 - Fair. Neither for or against. Unlikely to watch again, but I don't grudge the time spent.

4 - Good. I enjoyed it. I would probably watch again.

5 - Exceptional. Probably in my top 10 now, and foresee enjoying watching for years to come.

3 and 4 are used a lot. 2 is used occasionally. 1 and 5 are rare.