Good classic TV humor is good humor. Story lines where loudmouths and schemers get their come-uppance is/are funny. What many found funny with Marx brothers was often times funny because they made fun and deflated the eltie upper crust or authority figures.
Lucy, to me, was hysterical - regardless of the job Desi did. They still were a middle-class family with neighbors/freinds who were middle-class - making them easy figures with whom most could relate - hence their ratings throughout the history of TV entertainment even to present day.
But one man's treasure is another man's trash. The TV show I Love Lucy has stood the test of time as far as repeat revenue for TV stations for multi-generations and multi-language translations. Back in the day of UHF tv shows over-the-air (not cable), it kept many small UHF stations afloat. Programming became somewhat easy as they (UHF TV execs) needed a few money-makers like I Love Lucy and the Horney-mooners and sports - perhaps some baseball and hockey games that the local network outlets didn't carry.
Back to the point, the bottom line is whether or not you choose to model your brand of entertainment plots around Lucy or the Horneymooners, you need to remember to model the subject's humanity of your characters after these guys and keep them lovable. That could be a big stretch for some ambitious young but misguided authors.