Go buy a Chromecast already.

If you haven't picked up a Chromecast yet, now is the ideal time to do so. The device is now on sale for $25, and Google is throwing in three months of HBO Now — a $45 value. The offer is limited to new users, so if you've already subscribed to HBO's streaming service, you won't be eligible.

The promotion is valid on the $69 Chromecast Ultra as well, and runs through December 24. You have until January 8 to claim the HBO Now deal, and following the three-month trial, you'll be charged $15 a month to continue accessing HBO's streaming service.

Interested? Hit up the Google Store to get your hands on the Chromecast. Don't know if you should pick up the standard Chromecast or the 4K Chromecast Ultra? We have you covered.

See at Google Store