You can use the Assistant to view your Watchlist on Chromecast

Not to mince words, this isn’t a gigantic new feature. If you have a Chromecast, with this new feature, you’ll be able to summon the Google Assistant and ask for your watchlist. It doesn’t offer much more functionality outside of letting you access the stuff you plan to watch faster. All you have to do is press the dedicated Google Assistant button on your remote. When the Assistant pops up, just say “Show me my watchlist”. After that, you’ll be presented with your watchlist so you can browse what to watch.

Speaking of Chromecast, the Chromecast-enabled Mecool KD3 is a great product to consider

The Chromecast is a great way to get into the streaming dongle/stick fun. However, there are several alternatives that you can buy with different feature sets and prices. One such alternative is the KD3 from Chinese company Mecool. The Mecool KD3 is a streaming stick that’s compact enough to be placed in a pocket and plugs right into the HDMI port of your TV. Despite being so small, this device can deliver a really nice picture. The KD3 can stream a 4K picture at 60Hz. Not only is this device able to show you a crisp picture, but it can stream it in HDR10 and HDR10+. This device has 8GB of storage, which is the only real complaint with this device. You won’t be able to save too many apps on it, so you’ll need to pick and choose that to download. If you’re interested in getting one of these devices, it will set you back only $69.99. Buy the Mecool - $69.99