Best distro for testing TVHeadend.

I am just experimenting with TVHeadend (my main PVR Server uses NPVR) and must say that I am really rather impressed with it.

I installed it on an old PC running Linux Mint (OS on an SSD and recordings to a laptop HDD) and put in a single DVB-T tuner.

I am a complete Linux novice and cannot help noticing that Mint is packed with loads of features that I do not need.

Are there any other recommended distros that have far less installed as standard?

Could I even get away with just installing Librelec on the PC?