No, you cannot watch the World series or MLB for free since every streaming channel has a paywall. However, if you’re still willing to stream MLB playoffs without spending a penny, you can sign up for a free trial for up to 7 days. Streaming platforms like YouTube TV, Sling TV and Hulu offer a free trial to their users. You can avail this option and stream matches for free till it lasts. Don’t forget to connect to a VPN first.