Cov txiv neej liab qab los ntawm 50s, 60s, 70s - 25s. Thaum lub sijhawm ntawd, txhua yam muaj qeeb qeeb. TV dub thiab dawb, sau ntawv los ntawm cov ntawv thiab tau kawg, tsawg dua cov zaub mov tsis zoo, uas ua rau lub cev noj qab haus huv thiab zoo dua qub. Txoj cai yog kom muaj kev sib deev ntau dua thiab tham tsawg dua.