I'm a bit behind on watching this (on page 258, about Tuesday!)
This is in answer to people mentioning struggling to hear the spoken audio over the background music. It's worth checking the audio settings, most modern TVs have so-called enhancements including 'stereo widening' or 'virtual surround' etc. If these are on, anything panned in stereo can come out significantly louder than it would, and interfere with spoken audio, which is nearly always panned centre. In other words, the music drowns out the voices. Also, it's worth tweaking the EQ or bass/treble. If you have the higher and lower frequencies turned up and the mid turned down a little (if possible on your TV), you get a 'smile' effect which crisps up the voices, improves separation, and reduces the effect of music competing with the foreground.
If you have EQ presets, the 'voice' setting is nearly always useless- it's best to create a 'user' preset that you can adjust until you're happy.
I agree sometimes "background music" is too loud, though not experienced it so much on The Chase. Though, the "DING" sound for the contestant's answer coming up used to be really loud sometimes on older episodes.