diff --git a/knockout.postbox/knockout-postbox.d.ts b/knockout.postbox/knockout-postbox.d.ts
index 0910ab5f59..3e66988510 100644
--- a/knockout.postbox/knockout-postbox.d.ts
+++ b/knockout.postbox/knockout-postbox.d.ts
@@ -1,53 +1,22 @@
 // Type definitions for knockout-postbox
 // Project: https://github.com/rniemeyer/knockout-postbox
-// Definitions by: Judah Gabriel <https://github.com/JudahGabriel>
+// Definitions by: Judah Gabriel Himango <https://debuggerdotbreak.wordpress.com>
 // Definitions: https://github.com/borisyankov/DefinitelyTyped
 
+/// <reference path="../knockout/knockout.d.ts" />
 
 interface KnockoutPostBox {
-    subscribe: (topic: string, handler: (value) => void, target?: any) => KnockoutObservableAny;
-    publish: (topic: string, value?: any) => KnockoutObservableAny;
-    defaultComparer: (newValue: any, oldValue: any) => bool;
+    subscribe<T>(topic: string, handler: (value: T) => void , target?: any): KnockoutSubscription;
+    publish<T>(topic: string, value?: T): void;
+    defaultComparer<T>(newValue: T, oldValue: T): boolean;
 }
 
-interface KnockoutObservableString {
-    subscribeTo: (topic: string, useLastPublishedValueToInitialize?: bool, transform?: (val: any) => string) => KnockoutObservableString;
-    unsubscribeFrom: (topic: string) => KnockoutObservableString;
-    publishOn: (topic: string, skipInitialPublish?: bool, equalityComparer?: (newValue: string, oldValue: string) => bool) => KnockoutObservableString;
-    stopPublishingOn: (topic: string) => KnockoutObservableString;
-    syncWith: (topic: string, initializeWithLatestValue?: bool, skipInitialPublish?: bool, equalityComparer?: (newValue: string, oldValue: string) => bool) => KnockoutObservableString;
-}
-
-interface KnockoutObservableDate {
-    subscribeTo: (topic: string, useLastPublishedValueToInitialize?: bool, transform?: (val: any) => Date) => KnockoutObservableDate;
-    unsubscribeFrom: (topic: string) => KnockoutObservableDate;
-    publishOn: (topic: string, skipInitialPublish?: bool, equalityComparer?: (newValue: Date, oldValue: Date) => bool) => KnockoutObservableDate;
-    stopPublishingOn: (topic: string) => KnockoutObservableDate;
-    syncWith: (topic: string, initializeWithLatestValue?: bool, skipInitialPublish?: bool, equalityComparer?: (newValue: Date, oldValue: Date) => bool) => KnockoutObservableDate;
-}
-
-interface KnockoutObservableNumber {
-    subscribeTo: (topic: string, useLastPublishedValueToInitialize?: bool, transform?: (val: any) => number) => KnockoutObservableNumber;
-    unsubscribeFrom: (topic: string) => KnockoutObservableNumber;
-    publishOn: (topic: string, skipInitialPublish?: bool, equalityComparer?: (newValue: Number, oldValue: Number) => bool) => KnockoutObservableNumber;
-    stopPublishingOn: (topic: string) => KnockoutObservableNumber;
-    syncWith: (topic: string, initializeWithLatestValue?: bool, skipInitialPublish?: bool, equalityComparer?: (newValue: Number, oldValue: Number) => bool) => KnockoutObservableNumber;
-}
-
-interface KnockoutObservableBool {
-    subscribeTo: (topic: string, useLastPublishedValueToInitialize?: bool, transform?: (val: any) => bool) => KnockoutObservableBool;
-    unsubscribeFrom: (topic: string) => KnockoutObservableBool;
-    publishOn: (topic: string, skipInitialPublish?: bool, equalityComparer?: (newValue: bool, oldValue: bool) => bool) => KnockoutObservableBool;
-    stopPublishingOn: (topic: string) => KnockoutObservableBool;
-    syncWith: (topic: string, initializeWithLatestValue?: bool, skipInitialPublish?: bool, equalityComparer?: (newValue: bool, oldValue: bool) => bool) => KnockoutObservableBool;
-}
-
-interface KnockoutObservableAny {
-    subscribeTo: (topic: string, useLastPublishedValueToInitialize?: bool, transform?: (val: any) => any) => KnockoutObservableAny;
-    unsubscribeFrom: (topic: string) => KnockoutObservableAny;
-    publishOn: (topic: string, skipInitialPublish?: bool, equalityComparer?: (newValue: any, oldValue: any) => bool) => KnockoutObservableAny;
-    stopPublishingOn: (topic: string) => KnockoutObservableAny;
-    syncWith: (topic: string, initializeWithLatestValue?: bool, skipInitialPublish?: bool, equalityComparer?: (newValue: any, oldValue: any) => bool) => KnockoutObservableAny;
+interface KnockoutObservable<T> {
+    subscribeTo(topic: string, useLastPublishedValueToInitialize?: boolean, transform?: (val: any) => T): KnockoutObservable<T>;
+    unsubscribeFrom(topic: string): KnockoutObservable<T>;
+    publishOn(topic: string, skipInitialPublish?: boolean, equalityComparer?: (newValue: T, oldValue: T) => boolean): KnockoutObservable<T>;
+    stopPublishingOn(topic: string): KnockoutObservable<T>;
+    syncWith(topic: string, initializeWithLatestValue?: boolean, skipInitialPublish?: boolean, equalityComparer?: (newValue: T, oldValue: T) => boolean): KnockoutObservable<T>;
 }
 
 interface KnockoutStatic {