Unfortunately, I didn't realize that there were actually 3 sets of videos in the archives when I played through Lair of the Shadow Broker. By the time I knew, I'd already finished all of my sidequests, so I couldn't go and do a mission to trigger the 3rd set to show up. I ended up just importing my Shepard to Mass Effect 3 after having only watched 2 of the sets in the interest of time.
Now, during a conversation with Matriarch Aethyta,
Shepard mentioned that she saw a video of her staring at a picture of Liara, which prompts Aethyta to admit her parentage. Do you still find out about Liara being Aethyta's daughter if you haven't seen this archive?
Essentially, I'm wondering if I may miss other triggers based off the set of videos I missed… Is Shepard's mentioning of the video merely an added bit of flavor if you've done the DLC, or is it a needed trigger in order to find this information out at all?
Best Answer
According to the Mass Effect Wiki entry for Matriarch Aethyta you merely need to complete the DLC for Shepard to mention this.
My experience with this scene is that I do not even own the Broker DLC. Importing that Shepard with this convo did not even mention the video, but she still revealed herself to be Liara's father, with Shepard having...an awkward time accepting a female as a 'father'.