Maybe its an 'only in LA thing' but I never found either one individually, or the duo very entertaining. For a couple of years in the very early 90s (IIRC), their show was broadcast on San Francisco's KRQR (long defunct now - owned by CBS). Other than getting some publicity by helping to get a sitting San Francisco Mayor defeated (the idiot Mayor Jordan, who thought it would be a clever bit of publicity to take a shower with two morning radio DJs), their show didn't attract much interest or attention.
https://www.google.com/search?q=pho...FROM-NEWSOM-S-AFFAIR-PAST-2652452.php;920;570
I didn't know Thompson did TV. Are you sure it isn't the other Mark Thompson? The guy who works (or worked) for Fox, and started as a meteorologist? He was on Bay Area TV - prior to LA.
Final question - why would a decades-popular morning radio DJ need money, unless he was a bad investor? It's not like podcasts take a huge investment to record.
Mark did a tv show with Brian for a short period and he did some acting in LA. Maybe the wife and kids spent alot of the money. LA ain't cheap.. His wife was irritating.