Final answer:
The specific cost of a Digital Set-Top Box is not given, but it's important to consider both the purchase price and the ongoing operational costs when budgeting. Saving $100 per month could enable the purchase of a $1000 television in 10 months, demonstrating budgeting principles.
Step-by-step explanation:
The cost of a Digital Set-Top Box is not explicitly provided in the information given, but we can extrapolate from related details. For example, if you are considering the purchase of a new television set, which may cost around $1000, and you are able to save $100 per month after paying your bills, it would take approximately 10 months to save enough to make the purchase.
Moreover, the cost of owning a television doesn't end with the initial purchase. The power bill can increase the longer the TV is on, and additional expenses may accrue when you plug in devices such as a phone, which is often recharged.
Unfortunately, without a specific price listed for a Digital Set-Top Box, we can only advise that the pricing may vary based on features and the seller. It's worthwhile to compare different models and providers to find an option that fits within your financial budget.