tv_grab_se_swedb: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/tv_grab_se_swedb - from package: xmltv-util

You may install the required package with command apt-get install {package}

Error in other languages:
tv_grab_se_swedb: bevel nie gevind nie
tv_grab_se_swedb: comandă negăsită
tv_grab_se_swedb: comando não encontrado
tv_grab_se_swedb: commande introuvable
tv_grab_se_swedb: command not found
tv_grab_se_swedb: käsku ei ole
tv_grab_se_swedb: không tìm thấy lệnh
tv_grab_se_swedb: komanda nerasta
tv_grab_se_swedb: Kommando nicht gefunden.
tv_grab_se_swedb: kommandot finns inte
tv_grab_se_swedb: komut yok
tv_grab_se_swedb: nie znaleziono polecenia
tv_grab_se_swedb: níor aimsíodh an t-ordú
tv_grab_se_swedb: no se encontró la orden
tv_grab_se_swedb: no s'ha trobat l'ordre
tv_grab_se_swedb: opdracht niet gevonden
tv_grab_se_swedb: parancs nem található
tv_grab_se_swedb: perintah tidak ditemukan
tv_grab_se_swedb: príkaz nenájdený
tv_grab_se_swedb: příkaz nenalezen
tv_grab_se_swedb: команда не найдена
tv_grab_se_swedb: командата не е открита
tv_grab_se_swedb: 命令找不到
tv_grab_se_swedb: コマンドが見つかりません