All the medical advice says nothing is better for your kiddo than interaction with an adult.
The approach we try to take in our home is "what is this displacing?" Maybe to a lesser extent we worry about "what habit is this building?" Because nothing at all before two is a great goal to have that may run up against reality in ugly ways. My wife and I need to cook and clean and do other things that help us keep body and soul united. So while it's lovely to think that time my son doesn't spend watching tv is personal interaction time, the reality is that I can't always be interacting with him.
So as early as one our kid was allowed various amounts of videos. We avoided things with frenetic action and a lot of blinky-blinky and aimed for more informative/educational stuff. Animal videos, animation targeted at younger kids like AlphaBlocks, etc. We committed to not turning to it at the slightest request/difficulty, so sometimes boyo asks for tv or ipad and we have to stick it out a bit before he turns to playing with his trains or other toys.
Personally I think "hours" is a lot of veg time, but I don't much like to just sit and stare at a screen for that long myself. If it's something that she won't turn away from to do physical things then I think that can be a problem. I don't think you should make perfect the enemy of good - if you need some segments of time to do some other things then by all means, some video entertainment is okay. But you also shouldn't fool yourself that extended period of time motionless in front of the tube is displacing physical activity she needs to be engaging in on her way to walking and improving her physical dexterity.
