Reception staff member here OP!
I understand!
As others have said she’s probably telling you her highlights (CBeebies is a popular wet play treat - we watched a whole load of the cooking show on CBeebies today at lunch - can’t remember it’s name!)
I would also agree no news is most likely good news! The parents that we have had to have a proper chat with so far are children who have been wobbly, or are showing signs of needing additional support, or/ and struggled with the full days etc - your DD sounds like she’s not in that category and has probably settled fine 
Another good thing to ask her about to get more response could be what sound she has been learning today, and what numbers did she do. We have started ploughing through the phonics - depending on what program the school they use there may be a rhyme / song you can ask about (if she’s doing Read Write Inc or Jolly Phonics)
In reception the daily work will consist of phonics, handwriting (either on a board or a book), stories and some sort of topic work likely (probably in the form of art or craft). May be worth asking the teacher what days she is doing things like PE, music or outside specific (I know some schools have nature areas and such).
I promise you, You won’t be “that parent” by simply sticking your head in and asking how she’s doing - best time is probably end of day though. Best way is to approach towards the end of the crowd thinning down and just start with something like “Little one is really enjoying school, she seems happy, I just wondered how everything’s going because she doesn’t tell me much!” And then just feed on, ask what you can do to help her along - this will likely get the teacher to highlight some more info on what she’s doing in class and give you more of an idea.
The online journals are interesting come primary school - especially when parents are used to constant updates from nurseries! Primarily, they document proof that the child has hit the different targets of the EYFS, whereas, while nurseries use it for the same reason, you also get a lot more of the fun stuff at nursery just to keep you posted - which schools just don’t have time to do. There’s a high chance that the teacher has a lot of observations “banked” which just aren’t published yet (thinking of my own pile of post it notes containing observations for the week that I need to type up this weekend)
Hope you’ve been put at ease a bit OP, trust me I fee the pain even though I don’t have children. I ask at the end of the day before home time what they’ve enjoyed what did they learn etc. Child’s answer today? The best bit was lunch and they learnt how to pull ten paper towels from the dispenser at once. So demoralising
I love it