"Ai la trieu phu" (WWTBAM) is broadcast every Tuesday, in 20h (Vietnam hour is GMT+7), on VTV3. Re-broadcast every Wednesday, in 9h (Vietnam hour is GMT+7) on VTV3.
"Dau truong 100" (1 vs 100) is broadcast every Monday, in 20h (Vietnam hour is GMT+7), on VTV3. Re-broadcast every Thursday, in 10h (Vietnam hour is GMT+7) on VTV4.
"Ai la trieu phu" isn't broadcast on VTV4 - a channel for Vietnamese people who live overseas.