The phones are ringing off the hook at television home shopping company QVC. QVC (its name stands for "quality, value, and convenience") offers about 1,000 items each week to TV-tied consumer shoppers. Merchandise includes apparel, cosmetics, electronics, housewares, jewelry, and toys. It broadcasts 24 hours a day; viewers call in their orders to one of its three US call centers. If you can't find what you're shopping for on the tube, it also sells online at QVC.com, through mobile apps, and some half dozen outlet stores in four states. The company has shopping channels in Germany, Japan, Italy, and the UK. QVC is a subsidiary of shopping and travel site operator Liberty Interactive.