There's already some Perseverance stuff being broadcast today, I tuned in for a while earlier and they were answering questions from social media about stuff like the team working on Mars time after landing.
To ensure it's clear for other readers, footage from the new cameras will not be streamed live during descent, but made available several days later.
To get a very "rough" sense of what that footage may be like afterwards (with a lot more cameras), Doug Ellison has a good composition from the Curiosity landing here: https://www.youtube.com/watch?v=RZioPhfxnSY
Space.com says NASA's landing broadcast will start at 2:15 PM EST on Thursday: https://www.space.com/mars-rover-perseverance-landing-webcas...
There's already some Perseverance stuff being broadcast today, I tuned in for a while earlier and they were answering questions from social media about stuff like the team working on Mars time after landing.