I don't think everyone who gives the Dark Knight Rises lower ratings have an expectations for it to be directly like the comics or the tv show.
I really tired of the thought that if you take prior knowledge of the comics you can't enjoy the film cause you have a specific type of expectation... but the point as a director is to toe the line between respecting the source material and bringing something new for audiences who are not exposed to the original materials. So, this idea that you need a blank slate to enjoy the movie is crazy to me.
I enjoyed the movie but that doesn't mean there were not issues with the story or some of the characters.
For example, I knew prior about the story of Talia and her character personality. Nolan pretty much got that right but the whole story about why she was upset with her father was a pretty weak point. Plus, the part when Batman is in the pit.. the way Nolan use the men there to give clues that the child & Bane were not the same was pretty tricky & I caught it. My only grip was the fact Batman didn't ask more questions.. but we agreed that a mixture of hallucinations, pain and arrogance let him assume too quickly. I just wanted to see some growth in his character as Batman..