Hi Tai,
The first thing you’ll want to check is what do you have set as your Events Template in Settings > The Events Calendar > Template? If you have the “Default Events Template” selected, then you’ll want to make a copy of /wp-content/plugins/the-events-calendar/views/ecp-page-template.php and place in an ‘events’ folder in your theme and edit away to modify the title. Here is an example from another theme as to how you could do this: https://gist.github.com/aad337b8f0662d4df1b6
If you are not using the Default Events Template, you’ll be using one of your themes page templates (either page.php or some other template) that you can edit in the same way.
Note that either of these templates is only going to control the main event pages (grid/list), Venues, and Single Days. Not Single Events. Single Events use either the ecp-single-template.php if you have “Default Events Template” selected or your theme’s single.php template.
That should point you in the right direction but let me know if you need any other help with this.
Cheers,
Jonah