Sin garantía, el arreglo del televisor sale caro.

without

Breakdown of Sin garantía, el arreglo del televisor sale caro.

• el televisor: the TV
• del: of the
• el arreglo: the repair

Questions & Answers about Sin garantía, el arreglo del televisor sale caro.

Why does sin garantía come first, and what does the comma do?

Sin garantía is a fronted prepositional phrase that sets the condition/context for the whole statement: in the case where there’s no warranty.
The comma signals a pause and helps the reader hear it as an introductory phrase. In everyday writing you might also see it without the comma, especially if the phrase is short: Sin garantía el arreglo del televisor sale caro.

Does sin garantía mean “without a warranty” or “without the warranty”?

In Spanish, sin + noun often omits an article and is understood generically: sin garantía = without warranty coverage (in general / in this situation).
If you want to be more specific (e.g., without the warranty that came with it), you can say sin la garantía.

Why is it el arreglo and not a verb like arreglar?

Here el arreglo is a noun meaning the repair / the fixing. Spanish often uses a noun phrase where English might use a gerund or infinitive.
A very common alternative is the infinitive construction:

• Sin garantía, arreglar el televisor sale caro.
  Both are natural; the original sounds a bit more “noun-y”/matter-of-fact.

Does arreglo definitely mean “repair” here? I thought it could mean “arrangement.”