El modelo de la tarjeta es

TBS6814 ISDB-T Quad Tuner PCIe Card

pagina del producto: https://www.tbsdtv.com/products/tbs6814-isdb-t-quad-tuner-pcie-card.html
pagina driver https://www.tbsiptv.com/index.php?route=product/download/drivers&path=download/tbs6814/tbs6814_windows-driver_v1.0.0.3.zip&id=19
Guia de instalación https://github.com/tbsdtv/linux_media/wiki
Para ver que el sistema la reconoce

 lspci | grep Multimedia

//resultado
03:00.0 Multimedia controller: TBS Technologies DVB Tuner PCIe Card

Requisitos

apt-get install linux-headers-generic
sudo apt-get install patchutils
sudo apt-get install libproc-processtable-perl

Dependencias

sudo apt-get update
sudo apt-get install gcc-8 -y
sudo apt-get install g++-8 -y
cd /usr/bin
sudo rm gcc g++
sudo ln -s gcc-8 gcc
sudo ln -s g++-8 g++

Descargamos el proyecto

cd /home/ugit/
git clone https://github.com/tbsdtv/media_build.git
git clone --depth=1 https://github.com/tbsdtv/linux_media.git -b latest ./media

Esto nos crea 2 carpetas

Ejecutamos

cd media_build
make dir DIR=../media
make allyesconfig
make -j4
sudo make install

instalamos firmware

wget http://www.tbsdtv.com/download/document/linux/tbs-tuner-firmwares_v1.0.tar.bz2
sudo tar jxvf tbs-tuner-firmwares_v1.0.tar.bz2 -C /lib/firmware/

Reiniciamos y comprobamos

dmesg | grep frontend
//Resultado
[    4.238208] TBSECP3 driver 0000:03:00.0: DVB: registering adapter 0 frontend 0 (Turbosight TBS 6814 (Quad ISDB-T))...
[    4.364083] TBSECP3 driver 0000:03:00.0: DVB: registering adapter 1 frontend 0 (Turbosight TBS 6814 (Quad ISDB-T))...
[    4.492434] TBSECP3 driver 0000:03:00.0: DVB: registering adapter 2 frontend 0 (Turbosight TBS 6814 (Quad ISDB-T))...
[    4.620152] TBSECP3 driver 0000:03:00.0: DVB: registering adapter 3 frontend 0 (Turbosight TBS 6814 (Quad ISDB-T))...

Podemos instalar esta aplicación para listar las tarjetas

sudo apt --yes install dvb-apps
sudo lsdvb

Resultado

		lsdvb: Simple utility to list PCI/PCIe DVB devices
		Version: 0.0.4
		Copyright (C) Manu Abraham

TBSECP3 driver (544:6178 6814:1) on PCI Domain:0 Bus:3 Device:0 Function:0
	DEVICE:0 ADAPTER:2 FRONTEND:0 (Turbosight TBS 6814 (Quad ISDB-T)) 
		 FE_OFDM Fmin=76MHz Fmax=858MHz
	DEVICE:0 ADAPTER:0 FRONTEND:0 (Turbosight TBS 6814 (Quad ISDB-T)) 
		 FE_OFDM Fmin=76MHz Fmax=858MHz
	DEVICE:0 ADAPTER:3 FRONTEND:0 (Turbosight TBS 6814 (Quad ISDB-T)) 
		 FE_OFDM Fmin=76MHz Fmax=858MHz
	DEVICE:0 ADAPTER:1 FRONTEND:0 (Turbosight TBS 6814 (Quad ISDB-T)) 
		 FE_OFDM Fmin=76MHz Fmax=858MHz

Instalñar

sudo apt install software-properties-common
sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt update
sudo apt install python3.8
python3 --version


wget https://github.com/linuxmint/hypnotix/releases/download/1.1/hypnotix_1.1_all.deb
sudo apt update
sudo dpkg -i hypnotix_1.1_all.deb
sudo apt -f install

lspci -v | grep -E "TBS|Kernel"

/dev/dvb/adapter*/

sudo apt-get install -y mumudvb

sudo mumudvb -l

kaffeine
sudo apt-get install w-scan
sudo apt-get install dvb-tools dtv-scan-tables