In many places in the United States, customers are allowed to leave the carts in designated areas within the parking lot, and store personnel will return the carts to the storage area. In many continental European premises, however, coin- (or token-) operated locking mechanisms are provided to encourage shoppers to return the carts to the correct location after use.
Studies have shown that it's advisable for shoppers to sanitize the handles and basket areas prior to handling them or filling them with groceries due to high levels of bacteria that typically live on shopping carts.
Most modern shopping carts are made of metal or a combination of metal and plastic and have been designed to nest within each other in a line to facilitate collecting and moving many at one time and also to save on storage space. The carts can come in many sizes, with larger ones able to carry a child. There are also specialized carts designed for two children, and electric mobility scooters with baskets designed for disabled customers.
Both shorts originally aired as part of Liquid Television and did not include music videos.
Season 1 (1993)
Mike Judge himself is highly critical of the animation and quality of these episodes, in particular the first two – "Blood Drive"/"Give Blood" and "Door to Door" – which he described as "awful, I don't know why anybody liked it... I was burying my head in the sand."
Season 2 (1993)
Season 3 (1993-94)
Season 4 (1994)
Season 5 (1994–95)
Season 6 (1995–96)
Season 7 (1997)
Starting this season, the show switched to a 7-minute short act, with most of the shorts running approximately 5 minutes with one music video at the end.