diff --git a/model/youtube_channel.go b/model/youtube_channel.go
index 4eca8c0..8d950f9 100644
--- a/model/youtube_channel.go
+++ b/model/youtube_channel.go
@@ -19,6 +19,18 @@ type YoutubeChannel struct {
 	Groups    []*YoutubeGroup `db:"-"`
 }
 
+// GetAllYoutubeChannels -
+func GetAllYoutubeChannels() (yt []*YoutubeChannel, err error) {
+	err = x.Select(&yt, `select * from "public"."youtube_channel"`)
+	return
+}
+
+// GetYoutubeChannelsWithExpire -
+func GetYoutubeChannelsWithExpire(e int64) (yt []*YoutubeChannel, err error) {
+	err = x.Select(&yt, `select * from "public"."youtube_channel" where "expire" = -1 or "expire" < $1`, e)
+	return
+}
+
 // GetYoutubeChannelWithID -
 func GetYoutubeChannelWithID(id string) (yt *YoutubeChannel, err error) {
 	err = x.Get(&yt, `select * from "public"."youtube_channel" where "id" = $1`, id)
diff --git a/module/background/background.go b/module/background/background.go
index 6c20684..067b5a3 100644
--- a/module/background/background.go
+++ b/module/background/background.go
@@ -12,5 +12,6 @@ func SetBackground() {
 	c.AddFunc("0 * * * * *", readFacebookPage)
 	c.AddFunc("*/20 * * * * *", getStreamStatus)
 	c.AddFunc("*/5 * * * * *", checkOpay)
+	c.AddFunc("0 0 */3 * * *", checkYoutubeSubscribe)
 	c.Start()
 }
diff --git a/module/background/youtube.go b/module/background/youtube.go
new file mode 100644
index 0000000..a41b0dd
--- /dev/null
+++ b/module/background/youtube.go
@@ -0,0 +1,20 @@
+package background
+
+import (
+	"time"
+
+	"git.trj.tw/golang/mtfosbot/model"
+	googleapis "git.trj.tw/golang/mtfosbot/module/apis/google"
+)
+
+func checkYoutubeSubscribe() {
+	e := time.Now().Unix() + (4 * 60 * 60)
+	yt, err := model.GetYoutubeChannelsWithExpire(e)
+	if err != nil || len(yt) == 0 {
+		return
+	}
+
+	for _, v := range yt {
+		googleapis.SubscribeYoutube(v.ID)
+	}
+}
diff --git a/router/api/twitch.go b/router/api/twitch.go
new file mode 100644
index 0000000..100e4af
--- /dev/null
+++ b/router/api/twitch.go
@@ -0,0 +1,13 @@
+package api
+
+import (
+	"git.trj.tw/golang/mtfosbot/model"
+)
+
+func sessionTypeTwitch(id string) (ch []*model.TwitchChannel, err error) {
+	return
+}
+
+func sessionTypeSystem() (ch []*model.TwitchChannel, err error) {
+	return
+}