diff --git a/Rx.playground/Pages/Combining_Observables.xcplaygroundpage/Contents.swift b/Rx.playground/Pages/Combining_Observables.xcplaygroundpage/Contents.swift
index 7887749b..b4324272 100644
--- a/Rx.playground/Pages/Combining_Observables.xcplaygroundpage/Contents.swift
+++ b/Rx.playground/Pages/Combining_Observables.xcplaygroundpage/Contents.swift
@@ -1,3 +1,12 @@
+/*:
+> # IMPORTANT: To use `RxPlaygrounds`, please:
+
+1. Open `Rx.xcworkspace`
+2. Build `RxSwift-OSX` scheme
+3. And then open `Rx` playground in `Rx.xcworkspace` tree view.
+4. Choose `View > Show Debug Area`
+*/
+
 //: [<< Previous](@previous) - [Index](Index)
 
 import RxSwift
diff --git a/Rx.playground/Pages/Conditional_and_Boolean_Operators.xcplaygroundpage/Contents.swift b/Rx.playground/Pages/Conditional_and_Boolean_Operators.xcplaygroundpage/Contents.swift
index 9da1d2ec..1e415e25 100644
--- a/Rx.playground/Pages/Conditional_and_Boolean_Operators.xcplaygroundpage/Contents.swift
+++ b/Rx.playground/Pages/Conditional_and_Boolean_Operators.xcplaygroundpage/Contents.swift
@@ -1,3 +1,12 @@
+/*:
+> # IMPORTANT: To use `RxPlaygrounds`, please:
+
+1. Open `Rx.xcworkspace`
+2. Build `RxSwift-OSX` scheme
+3. And then open `Rx` playground in `Rx.xcworkspace` tree view.
+4. Choose `View > Show Debug Area`
+*/
+
 //: [<< Previous](@previous) - [Index](Index)
 
 import Cocoa
diff --git a/Rx.playground/Pages/Connectable_Observable_Operators.xcplaygroundpage/Contents.swift b/Rx.playground/Pages/Connectable_Observable_Operators.xcplaygroundpage/Contents.swift
index 1bbdd93b..d43f3bf2 100644
--- a/Rx.playground/Pages/Connectable_Observable_Operators.xcplaygroundpage/Contents.swift
+++ b/Rx.playground/Pages/Connectable_Observable_Operators.xcplaygroundpage/Contents.swift
@@ -1,3 +1,12 @@
+/*:
+> # IMPORTANT: To use `RxPlaygrounds`, please:
+
+1. Open `Rx.xcworkspace`
+2. Build `RxSwift-OSX` scheme
+3. And then open `Rx` playground in `Rx.xcworkspace` tree view.
+4. Choose `View > Show Debug Area`
+*/
+
 //: [<< Previous](@previous) - [Index](Index)
 
 import RxSwift
diff --git a/Rx.playground/Pages/Error_Handling_Operators.xcplaygroundpage/Contents.swift b/Rx.playground/Pages/Error_Handling_Operators.xcplaygroundpage/Contents.swift
index 71f812ca..e7adfcc7 100644
--- a/Rx.playground/Pages/Error_Handling_Operators.xcplaygroundpage/Contents.swift
+++ b/Rx.playground/Pages/Error_Handling_Operators.xcplaygroundpage/Contents.swift
@@ -1,3 +1,12 @@
+/*:
+> # IMPORTANT: To use `RxPlaygrounds`, please:
+
+1. Open `Rx.xcworkspace`
+2. Build `RxSwift-OSX` scheme
+3. And then open `Rx` playground in `Rx.xcworkspace` tree view.
+4. Choose `View > Show Debug Area`
+*/
+
 //: [<< Previous](@previous) - [Index](Index)
 
 import RxSwift
diff --git a/Rx.playground/Pages/Filtering_Observables.xcplaygroundpage/Contents.swift b/Rx.playground/Pages/Filtering_Observables.xcplaygroundpage/Contents.swift
index 1f6406f1..8f2d260a 100644
--- a/Rx.playground/Pages/Filtering_Observables.xcplaygroundpage/Contents.swift
+++ b/Rx.playground/Pages/Filtering_Observables.xcplaygroundpage/Contents.swift
@@ -1,3 +1,12 @@
+/*:
+> # IMPORTANT: To use `RxPlaygrounds`, please:
+
+1. Open `Rx.xcworkspace`
+2. Build `RxSwift-OSX` scheme
+3. And then open `Rx` playground in `Rx.xcworkspace` tree view.
+4. Choose `View > Show Debug Area`
+*/
+
 //: [<< Previous](@previous) - [Index](Index)
 
 import RxSwift
diff --git a/Rx.playground/Pages/Index.xcplaygroundpage/Contents.swift b/Rx.playground/Pages/Index.xcplaygroundpage/Contents.swift
index cb6598bf..7f4bb155 100644
--- a/Rx.playground/Pages/Index.xcplaygroundpage/Contents.swift
+++ b/Rx.playground/Pages/Index.xcplaygroundpage/Contents.swift
@@ -1,6 +1,6 @@
 
 /*:
-> # IMPORTANT: To use `RxSamples`, please:
+> # IMPORTANT: To use `RxPlaygrounds`, please:
 
 1. Open `Rx.xcworkspace`
 2. Build `RxSwift-OSX` scheme
diff --git a/Rx.playground/Pages/Introduction.xcplaygroundpage/Contents.swift b/Rx.playground/Pages/Introduction.xcplaygroundpage/Contents.swift
index 81be41fa..acd7837b 100644
--- a/Rx.playground/Pages/Introduction.xcplaygroundpage/Contents.swift
+++ b/Rx.playground/Pages/Introduction.xcplaygroundpage/Contents.swift
@@ -1,3 +1,12 @@
+/*:
+> # IMPORTANT: To use `RxPlaygrounds`, please:
+
+1. Open `Rx.xcworkspace`
+2. Build `RxSwift-OSX` scheme
+3. And then open `Rx` playground in `Rx.xcworkspace` tree view.
+4. Choose `View > Show Debug Area`
+*/
+
 //: [<< Index](@previous)
 
 import RxSwift
diff --git a/Rx.playground/Pages/Mathematical_and_Aggregate_Operators.xcplaygroundpage/Contents.swift b/Rx.playground/Pages/Mathematical_and_Aggregate_Operators.xcplaygroundpage/Contents.swift
index 9e390081..d7de949f 100644
--- a/Rx.playground/Pages/Mathematical_and_Aggregate_Operators.xcplaygroundpage/Contents.swift
+++ b/Rx.playground/Pages/Mathematical_and_Aggregate_Operators.xcplaygroundpage/Contents.swift
@@ -1,3 +1,12 @@
+/*:
+> # IMPORTANT: To use `RxPlaygrounds`, please:
+
+1. Open `Rx.xcworkspace`
+2. Build `RxSwift-OSX` scheme
+3. And then open `Rx` playground in `Rx.xcworkspace` tree view.
+4. Choose `View > Show Debug Area`
+*/
+
 //: [<< Previous](@previous) - [Index](Index)
 
 import RxSwift
diff --git a/Rx.playground/Pages/Observable_Utility_Operators.xcplaygroundpage/Contents.swift b/Rx.playground/Pages/Observable_Utility_Operators.xcplaygroundpage/Contents.swift
index 3010400c..5b040ec6 100644
--- a/Rx.playground/Pages/Observable_Utility_Operators.xcplaygroundpage/Contents.swift
+++ b/Rx.playground/Pages/Observable_Utility_Operators.xcplaygroundpage/Contents.swift
@@ -1,3 +1,12 @@
+/*:
+> # IMPORTANT: To use `RxPlaygrounds`, please:
+
+1. Open `Rx.xcworkspace`
+2. Build `RxSwift-OSX` scheme
+3. And then open `Rx` playground in `Rx.xcworkspace` tree view.
+4. Choose `View > Show Debug Area`
+*/
+
 //: [<< Previous](@previous) - [Index](Index)
 
 import RxSwift
diff --git a/Rx.playground/Pages/Subjects.xcplaygroundpage/Contents.swift b/Rx.playground/Pages/Subjects.xcplaygroundpage/Contents.swift
index e74015e4..a407fbe3 100644
--- a/Rx.playground/Pages/Subjects.xcplaygroundpage/Contents.swift
+++ b/Rx.playground/Pages/Subjects.xcplaygroundpage/Contents.swift
@@ -1,3 +1,12 @@
+/*:
+> # IMPORTANT: To use `RxPlaygrounds`, please:
+
+1. Open `Rx.xcworkspace`
+2. Build `RxSwift-OSX` scheme
+3. And then open `Rx` playground in `Rx.xcworkspace` tree view.
+4. Choose `View > Show Debug Area`
+*/
+
 //: [<< Previous](@previous) - [Index](Index)
 
 import RxSwift
diff --git a/Rx.playground/Pages/Transforming_Observables.xcplaygroundpage/Contents.swift b/Rx.playground/Pages/Transforming_Observables.xcplaygroundpage/Contents.swift
index f0216cf5..eb20a3f1 100644
--- a/Rx.playground/Pages/Transforming_Observables.xcplaygroundpage/Contents.swift
+++ b/Rx.playground/Pages/Transforming_Observables.xcplaygroundpage/Contents.swift
@@ -1,3 +1,12 @@
+/*:
+> # IMPORTANT: To use `RxPlaygrounds`, please:
+
+1. Open `Rx.xcworkspace`
+2. Build `RxSwift-OSX` scheme
+3. And then open `Rx` playground in `Rx.xcworkspace` tree view.
+4. Choose `View > Show Debug Area`
+*/
+
 //: [<< Previous](@previous) - [Index](Index)
 
 import RxSwift