diff --git a/bravia/avContent.go b/bravia/avContent.go
new file mode 100644
index 0000000..52fc525
--- /dev/null
+++ b/bravia/avContent.go
@@ -0,0 +1,14 @@
+package bravia
+
+type setPlayContentOptions struct {
+	URI string `json:"uri"`
+}
+
+type AVContent struct {
+	*Client
+}
+
+func (c *AVContent) SetPlayContent(uri string) error {
+	options := &setPlayContentOptions{URI: uri}
+	return c.rpc("avContent", "setPowerStatus", "1.0", options, nil)
+}
diff --git a/bravia/bravia.go b/bravia/bravia.go
new file mode 100644
index 0000000..587ff51
--- /dev/null
+++ b/bravia/bravia.go
@@ -0,0 +1,82 @@
+package bravia
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+)
+
+type Client struct {
+	client *http.Client
+	ip     string
+	psk    string
+	id     int
+
+	System    *System
+	AVContent *AVContent
+}
+
+func NewClient(ip, psk string) *Client {
+	c := &Client{
+		client: http.DefaultClient,
+		ip:     ip,
+		psk:    psk,
+	}
+	c.System = &System{Client: c}
+	c.AVContent = &AVContent{Client: c}
+	return c
+}
+
+func (c *Client) nextID() int {
+	c.id++
+	return c.id
+}
+
+type rpcRequest struct {
+	Method  string `json:"method"`
+	ID      int    `json:"id"`
+	Params  []any  `json:"params"`
+	Version string `json:"version"`
+}
+
+func (c *Client) rpc(service, method, version string, params, result any) error {
+
+	rpcBody := &rpcRequest{
+		Method:  method,
+		ID:      c.nextID(),
+		Params:  []any{params},
+		Version: version,
+	}
+
+	body := &bytes.Buffer{}
+	err := json.NewEncoder(body).Encode(rpcBody)
+	if err != nil {
+		return err
+	}
+
+	req, err := http.NewRequest("POST", fmt.Sprintf("http://%s/sony/%s", c.ip, service), body)
+	if err != nil {
+		return err
+	}
+
+	req.Header.Add("X-Auth-PSK", c.psk)
+
+	resp, err := c.client.Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode < 200 || resp.StatusCode > 299 {
+		return fmt.Errorf("request failed with %s", resp.Status)
+	}
+
+	if result == nil {
+		io.Copy(os.Stdout, resp.Body)
+		return nil
+	}
+	return json.NewDecoder(req.Body).Decode(result)
+}
diff --git a/bravia/system.go b/bravia/system.go
new file mode 100644
index 0000000..8fd97f8
--- /dev/null
+++ b/bravia/system.go
@@ -0,0 +1,15 @@
+package bravia
+
+type System struct {
+	*Client
+}
+
+type setPowerStatusOptions struct {
+	Status bool `json:"status"`
+}
+
+// https://pro-bravia.sony.net/develop/integrate/rest-api/spec/service/system/v1_0/setPowerStatus/index.html
+func (c *System) SetPowerStatus(status bool) error {
+	options := &setPowerStatusOptions{Status: status}
+	return c.rpc("system", "setPowerStatus", "1.0", options, nil)
+}
diff --git a/go.mod b/go.mod
index df36427..4ac7b66 100644
--- a/go.mod
+++ b/go.mod
@@ -4,6 +4,7 @@ go 1.19
 
 require (
 	github.com/abibby/fileserver v0.0.0-20221208191705-087686654550
+	github.com/davecgh/go-spew v1.1.1
 	github.com/gorilla/websocket v1.5.0
 	github.com/joho/godotenv v1.5.1
 	github.com/pkg/errors v0.9.1
diff --git a/go.sum b/go.sum
index e407aa1..d3bc8dd 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,7 @@
 github.com/abibby/fileserver v0.0.0-20221208191705-087686654550 h1:UsWK0321m+VxaYzoRMbpCXO4RBgM8lwkX9V1tTojN1w=
 github.com/abibby/fileserver v0.0.0-20221208191705-087686654550/go.mod h1:xHBGw2P5B6OigP/ehSFN0L0SVNJSuGnllCrkfZBEX4s=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWmnc=
 github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
diff --git a/ui/src/bravia/avContent.ts b/ui/src/bravia/avContent.ts
index 9dfe33e..b6a7f61 100644
--- a/ui/src/bravia/avContent.ts
+++ b/ui/src/bravia/avContent.ts
@@ -8,19 +8,16 @@ export interface Source {
     source: string
 }
 
-export const getSourceList = braviaAPIFactory<[options:GetSourceListOptions], Source[]>(
-    'avContent',
-    'getSourceList',
-    '1.0',
-)
+export const getSourceList = braviaAPIFactory<
+    [options: GetSourceListOptions],
+    Source[]
+>('avContent', 'getSourceList', '1.0')
 
 export interface SetPlayContentOptions {
     uri: string
 }
 
-
-export const setPlayContent = braviaAPIFactory<[options:SetPlayContentOptions], void>(
-    'avContent',
-    'setPlayContent',
-    '1.0',
-)
+export const setPlayContent = braviaAPIFactory<
+    [options: SetPlayContentOptions],
+    void
+>('avContent', 'setPlayContent', '1.0')