Sometimes, though, I will know there is a really sad, crushing episode coming up (where a main character dies, or some such) and just dread it.
More often, it will be like the witcher, where I did not like it enough to spend another n hours watching it a second time as compared to watching some other highly recommended show. Then I am stuck. In this case I will look for a ten or twenty minute video summary of the first two seasons. Hopefully someone will have (or has) made one.