The easy path to use Kaltura with Tiki is to get a hosted Kaltura.com account. However, if you want to be self-hosted, these are notes about how to install & configure Kaltura CE to work with Tiki6.
Kaltura CE > Settings > Integration settings > Account info -> this is the info to be added to tiki-admin.php?page=video
Kaltura CE needs to configure a UIConf configuration for the simple editor and the configuration wizard.
Other
Install Red5 for the webcam upload to work
If you want to show all the clips in the editor, go to the Kaltura KMC and set the setting for "Settings...Integration Settings...Advanced Settings...Return list of user clips" to True
For security, set "Settings...Integration Settings...Advanced Settings...Appear in searches" to Yes, site only.
For added security preventing embedding on sites other than yours, set "Settings...Access Control" to limit to the domains of your site.
HTML5 can't work with rtmp (which is a Flash protocol in decline and replaced by WebRTC, an open source solution ). You should use Akamai HD which provides live streaming services for mobile playback.