Wednesday 29th January 2025
8pm   Aston Villa   v   Celtic
8pm   Barcelona   v   Atalanta
8pm   Bayer 04 Leverkusen   v   Sparta Prague
8pm   Bayern Munich   v   Slovan Bratislava
8pm   Borussia Dortmund   v   Shakhtar Donetsk
8pm   Brest   v   Real Madrid
8pm   Dinamo Zagreb   v   AC Milan
8pm   Girona   v   Arsenal
8pm   Inter Milan   v   Monaco
8pm   Juventus   v   Benfica
8pm   Lille   v   Feyenoord
8pm   Manchester City   v   Club Brugge
8pm   PSV Eindhoven   v   Liverpool
8pm   Sporting Lisbon   v   Bologna
8pm   Sturm Graz   v   RB Leipzig
8pm   SV Red Bull Salzburg   v   Atlético Madrid
8pm   VfB Stuttgart   v   Paris St Germain
8pm   Young Boys   v   Crvena Zvezda

Source: https://www.footballwebpages.co.uk/champions-league/fixtures-results/matchday-8

All the games in the same day at the same hour is a terrible mistake.
I doubt that many broadcaster has so many tv channels to show all the games.